Magic damage is one of the three types of damage in League of Legends. Magic damage is dealt by some items and most champions' (e.g. 
mages) spells.
Statistics influencing magic damage
Most magic damage can be increased with ability power or attack damage in some rare cases, but some cannot be modified, such as 
Sunfire Cape's damage per second or 
Bilgewater Cutlass' active against champions.
The amount of magic damage received is reduced by a certain percentage based on the target's magic resistance. The effectiveness of magic resistance can be reduced with magic penetration.
Items that deal magic damage
Items
Ardent Censer- Bami's Cinder
- Bilgewater Cutlass
- Blade of the Ruined King
- Bramble Vest
- Cinderhulk
- Dead Man's Plate
- Frostfang
- Guinsoo's Rageblade
- Hextech GLP-800
- Hextech Gunblade
- Hextech Protobelt-01
- Hextech Revolver
- Liandry's Torment
- Lich Bane
- Lord Van Damm's Pillager
- Luden's Echo
- Nashor's Tooth
- Rapid Firecannon
- Remnant of the Watchers
- Runic Echoes
- Skirmisher's Sabre
- Spellthief's Edge
- Stalker's Blade
- Statikk Shiv
- Sunfire Cape
- Thornmail
- Timeworn Frost Queen's Claim
- Timeworn Frostfang
- Timeworn Spellthief's Edge
- Wit's End
- Zeke's Convergence
Champions that don't deal any magic damage
The following list consists of champions that don't deal any magic damage (not counting sources other than abilities and basic attacks, such as 
Ignite, 
Crest of Cinders or 
Leona's 
Sunlight):
Champion Abilities
These are champions' abilities that deal magic damage but scale with attack damage:
- Corki's Phosphorus Bomb deals 80 / 130 / 180 / 230 / 280 + (50% bonus AD) + (50% AP) magic damage.
- Corki's Missile Barrage deals 100 / 180 / 260 + (20 / 30 / 40% AD) + (30% AP) magic damage. The Big One deals 150 / 270 / 390 + (30 / 45 / 60% AD) + (45% AP) magic damage.
- Ezreal's Arcane Shift deals 75 / 125 / 175 / 225 / 275 + (50% bonus AD) + (75% AP) magic damage.
- Ezreal's Trueshot Barrage deals 350 / 500 / 650 + (100% bonus AD) + (90% AP) magic damage.
- Fizz's Urchin Strike deals 10 / 25 / 40 / 55 / 70 + (100% AD) + (55% AP) magic damage.
- Jayce's Thundering Blow deals (100% bonus AD) + (8 / 10.4 / 12.8 / 15.2 / 17.6 / 20% of target's maximum health) magic damage.
- Katarina's Death Lotus deals up to 350 / 550 / 750 + (375% bonus AD) + (250% AP) magic damage over 2.5 seconds.
- Kayle's Reckoning deals 60 / 110 / 160 / 210 / 260 + (100% bonus AD) + (60% AP) magic damage.
- Kayle's Righteous Fury grants her 20 / 30 / 40 / 50 / 60 + (20 / 25 / 30 / 35 / 40% AD) + (30% AP) magic splash damage on her basic attacks.
- Kennen's Electrical Surge passively makes his 5th basic attack deal (40 / 50 / 60 / 70 / 80% AD) bonus magic damage.
- Kog'Maw's Living Artillery deals 80 / 120 / 160 + (65% bonus AD) + (25% AP) magic damage.
- Mordekaiser's Mace of Spades deals a total of 28 / 66.5 / 117 / 181 / 260 + (175 / 218.2 / 268.1 / 319.6 / 390% AD) + (140 / 166.3 / 195 / 226.3 / 260% AP) magic damage over 3 enhanced basic attacks.
- Mordekaiser's Siphon of Destruction deals 35 / 65 / 95 / 125 / 155 + (60% AD) + (60% AP) magic damage.
- Lee Sin's Tempest deals 60 / 95 / 130 / 165 / 200 + (100% bonus AD) magic damage.
- Nidalee's Takedown deals from 4 / 20 / 50 / 90 + (75% AD) + (36% AP) magic damage to 13 / 67 / 167 / 300 + (250% AD) + (120% AP) magic damage.
- Shaco's Two-Shiv Poison deals 50 / 90 / 130 / 170 / 210 + (100% bonus AD) + (100% AP) magic damage.
- Shyvana's Burnout deals 20 / 35 / 50 / 65 / 80 + (20% bonus AD) magic damage per second.
- Thresh's Flay passively makes basic attacks deal ( Souls + up to (80 / 110 / 140 / 170 / 200% AD)) magic damage.
- Twisted Fate's Pick a Card scales with AD and AP:
- Warwick's Infinite Duress deals 30 / 50 / 70 + (40% bonus AD) magic damage per hit.
