User blog comment:Canopenerdude/Congratulations, you're now OP/@comment-4652200-20130408153849

This is quite easy - Tryndamere:

Passive: Undying Rage - Tryndamere is immune to death, his health cannot go below 1 health.

Q: Battle Fury

Passive: Tryndamere receives 0.35% bonus critical strike chance per point of Fury he currently has, for a maximum of 35% crit chance at 100 Fury.

W and E unchanged

R: Bloodlust Cooldown: 110 / 100 / 90

Passive: Permanently grants Tryndamere increased attack damage, granting a larger bonus per 1% of health he is missing.

Flat Attack Damage: 5 / 10 / 15 / 20 / 25 + 0.15 / 0.2 / 0.25 / 0.3 / 0.35 per 1% of health missing

Active: Tryndamere consumes all of his current Fury, restoring health equal to a base amount plus extra health per point of Fury consumed.