Infinite damage

[Aphotic Vizage]

[c]Mikaeus, the unhallowed[/c]
[c]Triskelion[/c]

Triskelion gains undying from Mikaeus, remove a counter and hit a player for 1, remove 2 counters and kill Triskelion. Remove 2 counters and hit a player for 2, remove two more and kill Triskelion, rinse and repeat.

[BlackJester]

[c]Mikaeus, the unhallowed[/c]
[c]Triskelion[/c]

Triskelion gains undying from Mikaeus, remove a counter and hit a player for 1, remove 2 counters and kill Triskelion. Remove 2 counters and hit a player for 2, remove two more and kill Triskelion, rinse and repeat.

You only need to remove the last counter to kill the {Triskelion}. Still, kudos!

[Spikepit]

{Mikaeus, the unhallowed}
{Triskelion[}

Triskelion gains undying from Mikaeus, remove a counter and hit a player for 1, remove 2 counters and kill Triskelion. Remove 2 counters and hit a player for 2, remove two more and kill Triskelion, rinse and repeat.