Broken Yasuo, Requires fixing (Lifestealing combo/insane heals)

After watching this video, I instantly believe this is still a bug in the current game state. It seems to me that when playing against a Yasuo with only a bloodthurst sword... he's already healing for over 400 damage with auto attacks. Obviously there's something up with it that is totally wrong within the code.

The video attached shows his ult doing 1 swing causing 2 damage strikes to be applied. I believe this is related with this "Double Chance" to critical strike.. where the code makes him do 2 hit instead of doubling his Crit.Chance.

There's definitely something that needs to be done...