Skyrim:Destruction Spells

This page lists Spells in the school of Destruction.

Spell Name (IDs)	Skill Level	Tome	Magicka Base Cost	Skill XP	Description and Effect Details	Where to Get
Choking Grasp^CC Spell ID: FExxx85A Tome ID: FExxx869	0 Novice	65	39	39	Absorb 8 points of health per second from target, for 3 seconds. Aimed Absorb Health, 8 points for 3 seconds.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Elemental Flare^CC Spell ID: FExxx850 Tome ID: FExxx862	0 Novice	65	45	22.5	An elemental explosion for 15 points of fire damage, 15 points of shock damage, and half as much damage to stamina. Aimed	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Flames Spell ID: 00012fcd Tome ID: 0009cd51	0 Novice	50	14/s	20/s 14/s^DB	A gout of fire that does 8 points per second. Targets on fire take extra damage: Concentration spell Range: 36 feet Speed: 47 fps Flames, 8 pts for 1 sec Sets targets on fire, dealing 1% of the immediate spell damage over 0.1s Intense Flames Fear, 99 pts for 15 secs; if the Intense Flames perk has been unlocked	All players start with this spell Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Nelacar, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Can be found in Labyrinthian Chasm, Forelhost Refectory, Hag's End, Mzulft Aedrome
Frostbite Spell ID: 0002b96b Tome ID: 0009cd52	0 Novice	47	16/s	23/s	A blast of cold that does 8 points of damage per second to Health and Stamina: Concentration spell Range: 36 feet Speed: 47 fps Frostbite, 8 pts for 1 sec Slow, 50 pts for 4 secs Deep Freeze Paralyze, for 3 secs; if the Deep Freeze perk has been unlocked	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Nelacar, Riverwood Trader, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Can be found in Labyrinthian Thoroughfare, Mzulft Aedrome, Serpent's Bluff Ruins
Sparks Spell ID: 0002dd2a Tome ID: 0009cd53	0 Novice	46	19/s	26/s	Lightning that does 8 points of shock damage to Health and Magicka per second: Concentration spell Range: 48 feet Speed: instant Sparks, 8 pts for 1 sec Disintegrate, 200 pts for 1 sec; if the Disintegrate perk has been unlocked	Dunmer start with this spell Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Nelacar, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Can be found in Fellglow Keep, Helgen Keep (during Unbound)
Elemental Bolt^CC Spell ID: FExxx85F Tome ID: FExxx863	25 Apprentice	95	62	31	An elemental explosion for 20 points of fire damage, 20 points of shock damage, and half as much damage to stamina. Aimed	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Fire Rune Spell ID: 0005db90 Tome ID: 000a2700	25 Apprentice	90	234	234	Cast on a nearby surface, it explodes for 50 points of fire damage when enemies come near: Cast on ground Fire Rune, 50 pts for 1 sec Sets targets on fire, dealing 10% of the immediate spell damage over 1s	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB
Firebolt Spell ID: 00012fd0 Tome ID: 000a26fd	25 Apprentice	96	41	41	A blast of fire that does 25 points of damage. Targets on fire take extra damage: Missile Range: 469 feet Speed: 117 fps Firebolt, 25 pts Sets targets on fire, dealing 10% of the immediate spell damage over 1s Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Intense Flames Fear, 99 pts for 15 secs; if the Intense Flames perk has been unlocked	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB
Freeze^DB Spell ID: xx02732d	25 Apprentice	N/A	30	0	A spike of ice that does 20 points of frost damage to Health and Stamina and slows the target for 15 seconds: Missile Range: 469 feet Speed: 117 fps Freeze, 20 pts Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Slow, 50 pts for 15 secs Deep Freeze Paralyze, for 3 secs; if the Deep Freeze perk has been unlocked	Only available with Ahzidal's Ring of Arcana equipped. Only available with the Dragonborn add-on
Frost Rune Spell ID: 0006796f Tome ID: 000a2701	25 Apprentice	92	293	293	Cast on a nearby surface, it explodes for 50 points of frost damage when enemies come near: Cast on ground Frost Rune, 50 pts for 1 sec	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB
Ice Spike Spell ID: 0002b96c Tome ID: 000a26fe	25 Apprentice	96	48	48	A spike of ice that does 25 points of frost damage to Health and Stamina: Missile Range: 469 feet Speed: 117 fps Ice Spike, 25 pts Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Slow, 50 pts for 3 secs Deep Freeze Paralyze, for 3 secs; if the Deep Freeze perk has been unlocked	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Can be found in Raven Rock Mine^DB
Ignite^DB Spell ID: xx02732b	25 Apprentice	N/A	30	7	A blast of flame that sets targets on fire, doing 4 damage per second for 15 seconds: Missile Range: 469 feet Speed: 117 fps Ignite, 4 pts for 15 secs Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Intense Flames Fear, 0.25 pts; if the Intense Flames perk has been unlocked	Only available with Ahzidal's Ring of Arcana equipped. Only available with the Dragonborn add-on
Lightning Bolt Spell ID: 0002dd29 Tome ID: 000a26ff	25 Apprentice	95	51	51	A bolt of lightning that does 25 points of shock damage to Health and half that to Magicka: Missile Range: 141 feet Speed: instant Lightning Bolt, 25 pts Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Disintegrate, 200 pts for 1 sec; if the Disintegrate perk has been unlocked	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB
Lightning Rune Spell ID: 00067970 Tome ID: 000a2702	25 Apprentice	93	323	323	Cast on a nearby surface, it explodes for 50 points of shock damage when enemies come near: Cast on ground Shock Rune, 50 pts for 1 sec	Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB
Strangulation^CC Spell ID: FExxx859 Tome ID: FExxx86A	25 Apprentice	95	84	84	Absorb 16 points of health per second from target, for 3 seconds. Aimed Absorb Health, 16 points for 3 seconds.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Calcelmo, Enthir, Falion, Faralda, Farengar Secret-Fire, Madena, Sybille Stentor, Wuunferth the Unliving, Wylandriah, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Chain Lightning Spell ID: 00045f9d Tome ID: 000a2708	50 Adept	390	156	78	Lightning bolt that does 40 points of shock damage to Health and half to Magicka, then leaps to a new target: Missile (instant impact) Range: 141 feet Speed: instant Chain Lightning, 40 pts in 20 ft Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Disintegrate, 200 pts for 1 sec in 20 ft; if the Disintegrate perk has been unlocked	Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB
Elemental Burst^CC Spell ID: FExxx85B Tome ID: FExxx864	50 Adept	350	96	48	An elemental explosion for 30 points of fire damage, 30 points of shock damage, and half as much damage to stamina. Aimed	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Fireball Spell ID: 0001c789 Tome ID: 000a2706	50 Adept	345	133	66	A fiery explosion for 40 points of damage in a 15 foot radius. Targets on fire take extra damage: Missile, explosive Range: 469 feet Speed: 117 fps Explosion radius: 15 feet Fireball, 40 pts in 15 ft Sets targets on fire, dealing 20% of the immediate spell damage over 2s Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Intense Flames Rout, 99 pts for 15 secs in 15 ft; if the Intense Flames perk has been unlocked	Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB
Flame Cloak Spell ID: 0003ae9f Tome ID: 000a2703	50 Adept	325	289	0	For 60 seconds, opponents in melee range take 8 points fire damage per second. Targets on fire take extra damage: Cast on self Flame Cloak, 8 pts in 10 ft for 60 secs Sets targets on fire, dealing 20% of the immediate spell damage over 2s	Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB Can be found on the shoreline east of Dawnstar, next to Yisra's corpse
Frost Cloak Spell ID: 0003aea2 Tome ID: 000a2704	50 Adept	340	316	0	For 60 seconds, opponents in melee range take 8 points frost damage and Stamina damage per second: Cast on self Frost Cloak, 8 pts in 10 ft for 60 secs	Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB
Hangman's Noose^CC Spell ID: FExxx858 Tome ID: FExxx86B	50 Adept	350	143	143	Absorb 26 points of health per second from target, for 3 seconds. Aimed Absorb Health, 26 points for 3 seconds.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Ice Storm Spell ID: 00045f9c Tome ID: 000a2707	50 Adept	360	144	72	A freezing whirlwind that does 40 points of frost damage per second to Health and Stamina: Missile (area of effect while traveling) Range: 96 feet Speed: 24 fps Ice Storm, 40 pts in 15 ft Slow, 50 pts for 5 secs Deep Freeze Paralyze, for 3 secs in 15 ft; if the Deep Freeze perk has been unlocked Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked	Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB
Lightning Cloak Spell ID: 0003aea3 Tome ID: 000a2705	50 Adept	355	370	0	For 60 seconds nearby opponents take 8 points of shock damage and half magicka damage: Cast on self Shock Cloak, 8 pts in 10 ft for 60 secs	Can be purchased from: Enthir, Faralda, Farengar Secret-Fire, Madena, Wuunferth the Unliving, Talvas Fathryon^DB
Whirlwind Cloak^DB Spell ID: xx01772d Tome ID: xx0177ad	50 Adept	395	338	0	For 60 seconds, opponents in melee range have a chance of being flung away: Cast on self Whirlwind Cloak, 10 pts for 60 secs	Can be purchased from Talvas Fathryon after completing the quest Wind and Sand. Only available with the Dragonborn add-on
Elemental Blast^CC Spell ID: FExxx856 Tome ID: FExxx865	75 Expert	650	144	72	An elemental explosion for 40 points of fire damage, 40 points of shock damage, and half as much damage to stamina. Aimed	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Icy Spear Spell ID: 0010f7ec Tome ID: 0010f7f3	75 Expert	725	320	320	A spear of ice that does 60 points of frost damage to Health and Stamina: Missile Range: 469 feet Speed: 117 fps Icy Spear, 60 pts Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Slow, 50 pts for 3 secs Deep Freeze Paralyze, for 3 secs; if the Deep Freeze perk has been unlocked	Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB
Incinerate Spell ID: 0010f7ed Tome ID: 0010f7f4	75 Expert	710	298	298	A blast of fire that does 60 points of damage. Targets on fire take extra damage: Missile Range: 469 feet Incinerate, 60 pts Sets targets on fire, dealing 10% of the immediate spell damage over 1s Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Intense Flames Fear, 99 pts for 15 secs; if the Intense Flames perk has been unlocked	Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB
Mara's Wrath^CC Spell ID: FExxx855 Tome ID: FExxx868	75 Expert	650	329	0	For 30 seconds, opponents in melee range take 16 points fire damage per second. Undead up to level 26 flee for 30 seconds. Swim unharmed in freezing cold water. Cast on self Mara's Wrath, determines that damage is dealt in 15 feet per second for 30 seconds; extends the duration of the cloak visual effect for an additional 2 seconds. Flames (`FExxx854`; `ccBGSSSE014_MarasWrath_FlameCloakDmg`) Flames, deals 16 points of fire damage for 1 second; hostile targets receive a burning effect that lingers, dealing an additional 0.16 fire damage for 0.1 seconds. Turn Undead Fear, demoralizes undead targets up to level 15 for 30 seconds. Intense Flames Fear, demoralizes targets up to level 15 for 15 seconds; if the Intense Flames perk has been unlocked. Resist Freezing Water, grants resistance to freezing cold water for 32 seconds.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Thunderbolt Spell ID: 0010f7ee Tome ID: 0010f7f5	75 Expert	750	343	343	A Thunderbolt that does 60 points of shock damage to Health and half that to Magicka: Missile Range: 188 feet Speed: instant Thunderbolt, 60 pts Perk Impact Stagger, 0.25 pts; if the Impact perk has been unlocked Disintegrate, 200 pts for 1 sec; if the Disintegrate perk has been unlocked	Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB
Touch of Death^CC Spell ID: FExxx857 Tome ID: FExxx86C	75 Expert	650	316	316	Absorb 40 points of health per second from target, for 4 seconds. Aimed Absorb Health, 40 points for 4 seconds.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB Only available with the Arcane Accessories creation.
Unbounded Flames^CC Spell ID: FExxx80E Tome ID: FExxx815	75 Expert	950	78/s	78/s	Casts a stream of long-distance fireballs in an arc. Impact creates a wall of fire that does 50 points of fire damage per second. Concentration Unbounded Flames, deals 8 points of fire damage for 1 second in 6 feet; targets receive a burning effect that lingers, dealing an additional 2.67 points of fire damage for 2 seconds. Fire (`0008F3EE`; `FireBarrierHazard`) or Fire (`000590FB`; `FireBarrierHazardDrop`), determines that damage is dealt in 3 feet for 30 seconds. Fire (`0008F3F1`; `HazardWallofFireSpell`). (Note that this is a separate spell linked with the above hazards, which allows for the grouping of the following effect.) Fire hazard, deals 20 points of fire damage for 1 second; targets receive a burning effect that lingers, dealing an additional 0.67 points of fire damage for 1 second. Intense Flames Fear, demoralizes targets up to level 99, with health below 20%, for 15 seconds; if the Intense Flames perk has been unlocked.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Faralda (only after Destruction Ritual Spell has been completed) Only available with the Arcane Accessories creation.
Unbounded Freezing^CC Spell ID: FExxx80D Tome ID: FExxx816	75 Expert	950	69/s	69/s	A freezing wind envelops the caster, knocking down nearby enemies and freezing them for 50 points of damage per second to Health and Stamina. Constant cast on self Unbounded Freeze, determines that damage is dealt and targets are knocked down in 15 feet. Frost Cloak Freeze (`FExxx825`; `ccBGSSSE014_FrostCloakDmg`). Unbounded Frostbite, deals 50 points of Frost Damage to the Health and Stamina of targets for 1 second. Deep Freeze Paralyze, paralyzes targets (with Health below 20%) for 2 seconds; if the Deep Freeze perk has been unlocked. Silent Empty Area Push explosion (`FExxx81A`; `ccBGSSSE014_SilentEmptyAreaPush`), knocks down targets. Unbounded Freeze, paralyzes targets in 12 feet.	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Faralda (only after Destruction Ritual Spell has been completed) Only available with the Arcane Accessories creation.
Unbounded Storms^CC Spell ID: FExxx808 Tome ID: FExxx817	75 Expert	950	69/s	69/s	Targets in melee range take 40 shock damage per second to Health, and half that to Magicka. Random lightning strikes deal an additional 30 damage. Constant cast on self Unbounded Storms, determines that damage is dealt to nearby targets Lightning Cloak Drain (`FExxx824`; `ccBGSSSE014_LightningCloakDmg`) Sparks, deals 40 points of Shock Damage to Health and Magicka per second. Disintegrate, 200 pts for 1 sec; if the Disintegrate perk has been unlocked Storm Lightning, randomly casts lightning bolts at nearby targets Storm Call Lightning Bolt (`FExxx808`; `ccBGSSSE014_ShockBoltSpell`) Shock Bolt Storm, 30 pts	Can be found in Hob's Fall Cave during The Lost Library quest. Can be purchased from: Faralda (only after Destruction Ritual Spell has been completed) Only available with the Arcane Accessories creation.
Wall of Flames Spell ID: 00035d7f Tome ID: 000a2709	75 Expert	680	118/s	118/s	Sprayed on the ground, it creates a wall of fire that does 50 points of fire damage per second: Constant cast on ground (each impact lasts for several seconds) Fire Barrier, 8 pts for 1 sec on targets hit directly Sets targets on fire, dealing 33% of the immediate spell damage over 2s Intense Flames Fear, 99 pts for 15 secs; if the Intense Flames perk has been unlocked Fire (HazardWallofFireSpell), 20 damage every 1 second and tapers for another. The hazard effect lasts for 30 seconds on the ground	Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB
Wall of Frost Spell ID: 00035d80 Tome ID: 000a270a	75 Expert	700	137/s	137/s	Sprayed on the ground, it creates a wall of frost that does 50 points of frost damage per second: Constant cast on ground (each impact lasts for several seconds) Frost Barrier, 8 points for 1 second on targets hit directly. Slow, 50 points for 5 seconds. Deep Freeze Paralyze, for 3 secs, if the Deep Freeze perk has been unlocked. Frost (HazardWallofFrostSpell), 20 damage every 1 second, Slows enemy for 5 seconds. The hazard effect lasts for 30 seconds on the ground.	Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB
Wall of Storms Spell ID: 00035d81 Tome ID: 000a270b	75 Expert	725	145/s	145/s	Sprayed on the ground, it creates a wall of lightning that does 50 points of shock damage per second: Constant cast on ground (each impact lasts for several seconds) Wall of Storms, 8 pts for 1 sec on targets hit directly Disintegrate, 200 pts for 1 sec; if the Disintegrate perk has been unlocked Shock (HazardWallofShockSpell), 20 shock damage every 1 second. The hazard effect lasts for 30 seconds on the ground	Can be purchased from: Enthir, Faralda, Talvas Fathryon^DB
Blizzard Spell ID: 0007e8e4 Tome ID: 000a270d	100 Master	1350	1106	1106	Targets take 20 points of frost damage for 10 seconds, plus Stamina damage: Cast on self Blizzard, 20 pts for 10 secs in 40 ft On Ice Paralyze, for 3 secs in 40 ft; if the Deep Freeze perk has been unlocked	Can be purchased from: Faralda (only after Destruction Ritual Spell has been completed)
Fire Storm Spell ID: 0007a82b Tome ID: 000a270c	100 Master	1290	1426	1426	A 100 point fiery explosion centered on the caster. Does more damage to closer targets: Cast on self; large area of effect Fire Storm 100, 100 pts in 100 ft Sets targets on fire, dealing 40% of the immediate spell damage over 4s. Fire Storm 65, 75 pts in 65 ft Fire Storm 25, 50 pts in 25 ft It Burns Hysteria, 99 pts for 7 secs in 100 ft; if the Intense Flames perk has been unlocked	Reward for quest Destruction Ritual Spell
Lightning Storm Spell ID: 0007e8e5 Tome ID: 000a270e	100 Master	1400	138/s	0	Target takes 75 points of shock damage per second to Health, and half that to Magicka: Cast then constant; no impact Lightning Storm, 75 pts for 1 sec Disintegrate, 200 pts for 1 sec; regardless of whether or not the Disintegrate perk has been unlocked	Can be purchased from: Faralda (only after Destruction Ritual Spell has been completed)
Arniel's Convection Spell ID: 0006a104	N/A	N/A	1/s	1/s	Burns the target 1 points per second. Targets on fire take extra damage. Flames, 1 pt for 1 sec Specifically intended to be used for heating Dwarven Convectors in the related quest	Not available for purchase Given to you by Arniel Gane during the quest Arniel's Endeavor
Vampiric Drain Spell IDs: 0008d5bf, 0008d5c0, 0008d5c1, 0008d5c2	N/A	N/A	6/s 10/s 13/s 17/s	6/s 10/s 13/s 17/s	Absorb <mag> points of health per second from the target Drain Health, <mag> pts for 1 sec <mag> is 2, 3, 4, or 5, depending upon your level of vampirism	Not available for purchase Spell is automatically added when you become a vampire

Spell Notes

The base cost for spells is the amount of magicka that would be necessary to cast the spell at 0 skill without any perks. The magicka cost at 100 skill is 41% less than the base cost; the cost can also be reduced via enchanted apparel and by unlocking various perks. See Spell Cost for the full magicka cost equation.
Skill level indicates which skill perk needs to be unlocked to decrease the spell's magicka cost. "N/A" is used for special spells whose cost is not affected by any perks.
The "Where to Get" column only lists guaranteed locations for obtaining the spell tomes. Most spell tomes are also available in random loot; see Spell Tome Locations and the table below for details.
For higher-level spell tomes to become available for purchase, your skill in the school must be high enough (see the table below). Also, master-level spell tomes can only be acquired once that school's ritual spell quest has been completed.
All spell tomes have a weight of 1.
Skill XP can be modified by scripts and by the game engine itself under various circumstances. The exact XP you receive may vary from the numbers listed here.
Magicka cost and skill XP are rounded down, both in game and on this page. Because of this, you may find that you cannot cast a spell even though it appears you have exactly enough magicka to do so.

Tomes by Level
Spell Level	Skill Level	Character Level, Boss Chest	Character Level, Random Chest
Novice	0	1	1
Apprentice	0	11	10
Adept	40	23	-
Expert	65	35	-
Master	0/90^†	-	-

†Master level spell tomes require the appropriate ritual spell quest to be completed to be sold; while the quests have a skill level requirement of 90 to initiate, if you have completed the quest and reset the skill by making it legendary, the spell tome should still be available for sale.

†

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Skyrim:Destruction Spells

Spell Notes

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