Discovered the most annoying build and the dumbest/easiest way to win.

Infini split push all day with almost no punishment.
It took almost my whole team to kill him. Not because he is decently tanky. Its because every time he is near death he speeds away and heals almost back to full hp. Push til you nearly die. Easily run away. Heal back to full like nothing happened.
I was Darius and every time he was near death he would speed away with his 1-100hp and heal back to almost 85%. You cant kill that shit. If you ever wanna be the biggest p.o.s. in the game. There ya go.
and yeh 45min loss to that garbage.
would be superior to thornmail. More cdr, more life, and better tower killing.
. Mess up and you get a retry