Garen's ult reset?!
Garen reset ult when execute his target?! Yeah, i don't see why not. Pyke does it, Darius does it, Kat too. Now that rito heard me about Ivern and Aurelion Sol, What you think? He might be a good pick on high elo's who knows, that's the exciting part...
Of course balancing his tankiness late game 
- Doesnt have an execute. Her damage doesn't scale with the enemy's missing health or instakills. As for resetting cooldowns... that's just her passive.
- Does it really need to reset though? Anyway, If it were to be physical damage I'd say keep the reset. But true damage, remove that nonsense. Then again he does need to set it up albeit fairly quickly done.
- See, this is where issues start. His ult is an AoE execute (in terms of certain death and ignores shielding), which resets on kill or cast (provided an enemy champion dies within the cast time). Now I'm ok with it being an AoE execute, but the reset on top of it is a little too much.