Tryndamere Ult Change Idea

Tryndamere's ultimate has always been toxic due to the fact that he can completely negate death for 5 seconds not matter what he builds. Here is my idea on how to tweak its numbers to make it more bearable to deal with and also forcing Tryndamere into a more damage oriented route.

Undying Rage Duration: 5 Seconds --> 3 (+1 per 100 Bonus AD) (+0.7 per 100 AP) Seconds Minimum Health: 30/50/70 --> 10 (+100% Bonus AD) (+75% AP)

This change is meant to make Tryndamere less oppressive from when he is behind while improving his strength if he builds full damage. Reply with any changes you'd make!