Druid's Call + Cathars' Crusade + Triskelion + Branching Evolution

Druid's Call

Cathars' Crusade

Triskelion

Branching Evolution

How it works

1. Activate Triskelion by removing a +1/+1 counter from it, dealing 1 damage to itself.
2. Druid's Call triggers, creating a 1/1 Squirrel creature token.
3. When the Squirrel enters the battlefield, Cathars' Crusade triggers, putting two +1/+1 counters on each creature you control.
4. Repeat.
5. During the next player's turn, you may remove all of the +1/+1 counters from Triskelion to deal infinite damage to any target(s).

This clever loop centers around Triskelion using its own activated ability to deal damage to itself, which triggers Druid's Call to flood the board with Squirrel tokens. Every time one of those tokens enters the battlefield, Cathars' Crusade rewards you by placing +1/+1 counters across your entire team. To truly break the math wide open, Branching Evolution steps in as a powerful static amplifier, doubling every counter placed so that Triskelion quickly regains more than it spends while growing endlessly. Once you've accumulated a mountain of power, you can simply redirect that damage elsewhere to wipe out your opponents.