Tryndamere rework

Passive: Tryndamere does not use mana, instead he gains fury with his auto attacks, killing units, and his spells. With every point of fury Tryndamere gains 0.3-1.2% increased attack speed.

Q: Tryndamere passively gains AD the lower health he has, capping at 20/30/40/50/60+current level multiplied by 2 at 1% health. Tryndamere may activate his Q to consume all fury and heal for 1/1.3/1.6/1.9/2.2+current level divided by 6.

W: Tryndamere yells profanaties about the enemy's mother, doing 1 of 2 effects. Enemy is facing Tryndamere: they gain 20% bonus damage on their auto attacks but hurt themselves for the bonus damage they are dealing for the duration(1.2-3 seconds) before factoring resistances. Enemy is facing away from Tryndamere: Tryndamere taunts enemies facing away, forcing them to attack him for 2 seconds while doing 30% reduced damage with his/her auto attacks.

E: Tryndamere spins to target location(same as live) dealing damage to all enemies hit. The cooldown is reduced by 0.5-1 second based on E level when hitting enemy champions.

R: Tryndamere refuses to die, entering Eternal rage. Tryndamere gains 50/75/100 fury on activation. When Tryndamere would die, his fury takes the hit instead until he has 0 fury in which he will then die. Each point of fury is equal to 0.02/0.03/0.04 of his bonus AD when he is at 1% max health(capping at 2.0/3.0/4.0 of his bonus AD.

So at rank 1 if he has max rank of Q, is level 10, and has 100 bonus AD, he would have each point of fury = 3.6 hit points. His bonus AD is 180.

Note: he can still gain fury while in ult.

Late game math, rank 3 of ult, max Q, 300 bonus AD from runes and masteries, his total bonus AD would be 300+96=396. Each point of fury would count as 15.84 health which would make his health at full fury be 1584 health. Probably extending the ult duration wouldn't hurt but testing needs to be done. Might look okay on paper but end up either op or super weak.

Thoughts?