General

Attack speed  0.635 (+3%)
Armor 21 (+ 3)
Mov Speed 335

Void Stone - Passive

Kassadin takes 12% reduced magic damage and ignores unit collision.

Null Sphere - Q

RANGE: 650
COST: 70 / 75 / 80 / 85 / 90 Mana
COOLDOWN: 10 / 9.5 / 9 / 8.5 / 8

Active: Kassadin fires an orb of void energy at a target enemy, dealing magic damage. The excess energy forms around himself, granting a shield that absorbs magic damage for 2 seconds.

Magic Damage: 80 / 110 / 140 / 170 / 200 (+ 70% AP)
Shield Strength: 60 / 90 / 120 / 150 / 190 (+ 45% AP)

Nether Blade - W

COOLDOWN: 9

Active: Kassadin charges his Nether Blade, causing his next basic attack to deal bonus magic damage and restore a percentage of his missing mana (quintupled against champions).

Magic Damage: 60 / 85 / 110 / 135 / 160 (+ 65% AP)
Mana Restored: 4 / 5 / 6 / 7 / 8 % missing mana
Mana Restored against Champions: 20 / 25 / 30 / 35 / 40 % missing mana

Force Pulse - E

RANGE: 700
COST: 70 / 75 / 80 / 85 / 90 Mana
COOLDOWN: 12

Active: Kassadin emits a pulse of void energy, dealing magic damage and Slow icon slowing enemies in a 80º cone in front of him for 1.5 second.

Magic Damage: 80 / 120 / 160 / 200 / 240 (+ 55% AP)
Slow: 20 / 30 / 40 / 50 / 60%

Riftwalk - R

RANGE: 600
COST: 60 / 120 / 240 / 480 / 960
COOLDOWN: 15 / 11 / 7

Passive: Kassadin draws energy from spells cast in his vicinity, gaining a charge whenever a spell is cast near him (including his own spells). Upon reaching 10 charges, Kassadin's next spell gains an additional effect. Range: 1000

Active: Kassadin teleports to a nearby location, dealing magic damage to enemy units within 150 range upon arrival. If Kassadin hits atleast one champion, cooldown is reduced by 50%.

Magic Damage: 80 / 100 / 120 (+ 30% AP)(+ 2% of max mana)

Each subsequent Riftwalk within the next 18 seconds costs double the mana and deals bonus damage, stacking up to 4 times.

Total cost of using Riftwalk n times: 60 / 120 / 240 / 480 / 960
Bonus Damage per stack: 40 / 50 / 60 (+ 1% max mana)
Maximum magic damage: 240 / 300 / 360 (+ 6% max mana)

Empowered Q: Silence target for 1 second.
Empowered W: Gain 50 range (200 total range).
Empowered E: Gain 40 bonus magic damage (120 / 160 / 200 / 240 / 280)
Empowered R: Gain 100 range (700 total range).