Each of Warwick's autoattacks deal 3 / 3.5 / 4 / 4.5 / 5 / 5.5 / 6 / 6.5 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 (2.5 + 0.5 / 1 at each level) additional magic damage and heal him for the same amount. Each successive attack against the same target will stack this amount of healing and damage up to a maximum of 3 stacks. The stacks remain for 4 seconds.
Eternal Thirst is a passive ability that grants Warwick an on-hit effect.
The attacks will apply other on-hit effects and can critically strike as normal.
The bonus damage from Eternal's Thirst can not critically strike.
Eternal Thirst's damage will go through parry, block .
Eternal Thirst's damage will be mitigated by dodge and blind.
The healing portion is independent from the damage portion of the ability, meaning the heal is always the same regardless of the damage dealt to the target.
Disregarding bonus Attack Damage, Eternal Thirst is an equivalent of ~ 5% / 10% / 15% Lifesteal at level 1 to ~ 14% / 27% / 41% Lifesteal at level 18.
COST: 70 / 80 / 90 / 100 / 110 mana
COOLDOWN: 10 / 9 / 8 / 7 / 6
Active: Warwick swipes at a target enemy, dealing magic damage for the greater value between a flat minimum amount or a percentage of the target's maximum health, plus additional bonus damage based on his ability power.
Including Eternal Thirst's damage, Infinite Duress will deal a total of 332.5 / 340 / 347.5 / 355 / 370 / 470 / 485 / 500 / 515 / 530 / 630 / 645 / 660(+ 200% bonus AD) magic damage. This is assuming you take ranks in Infinite Duress at level 6, 11 and 16 and you have had 2 stacks Eternal Thirst'.
All the strikes have the potential to trigger and apply Spellblade but will only hit once because of the internal cooldown of this item.