(Innate): Kassadin takes 15% reduced magic damage after magic resistance reductions have been applied. Kassadin converts each point of this ignored damage into 1% bonus attack speed for 4 seconds. This bonus attack speed stacks indefinitely, with the duration refreshing each time Kassadin takes magic damage.
Ability
Description
Leveling up
Null Slash
(Active): Kassadin's next auto attack deals additional magic damage,silences and slows the target.
Cost: 20 health
Slow amount: 15%
Slow duration: 3 seconds
Cooldown: 10 / 9 / 8 / 7 / 6 seconds
Extra Magic Damage: 30 / 45 / 60 / 75 / 90 (+0.4 per ability power)
Silence Duration: 1 / 1.5 / 2 / 2.5 / 3 seconds
Nether Blade
(Toggle): Kassadin's normal attacks become charged and deal bonus magic damage depending on his target's ability power.
Cost: 5 health
Extra Magic Damage: 20 / 30 / 40 / 50 / 60 (+0.2 per ability power)(+0.3 per ability power from the target)
Nether Pulse
(Active): Kassadin draws energy from spells cast in his vicinity, gaining a charge whenever a spell is cast near him, including his own spells. Kassadin can use Force Pulse to deal magic damage and reduce magic resist to a single target or consume the charges to restore health (self select).
Extra Heal per stack: 5 / 8 / 11 / 14 / 17 (+0.04 per ability power)
Riftwalk
(Active): Kassadin blinks to a nearby location, dealing magic damage to enemy units surrounding the destination area. Each subsequent Riftwalk in the next 8 seconds will cost more health and will deal additional damage. The cost and damage increase can stack up to 5 times.
Initial Cost: 60 health
Additional Cost per stack: 30 health
Range: 800
Radius of AoE Damage: 150
Cooldown: 7 / 6 / 5 seconds
Base Magic Damage: 80 / 110 / 130 (+0.5 per ability power)
Additional Magic Damage per stack: 40 / 60 / 80 (+0.06 per ability power)