Tank Ekko?
Yeah, I'm willing to bet my left testicle that if you didn't make every single one of his abilites have, like, a three second telegraphed delay, you'd have to BEG him to not build damage. Seriously, how often does a glass cannon Ekko get to hit the return on his Q, his W, or his ult, on priority targets in the middle of a raging teamfight?