Sunbond + Scurry Oak + Dazzling Angel

Sunbond

Scurry Oak

Dazzling Angel

How it works

1. Gain life.
2. Sunbond triggers, putting a +1/+1 counter on Scurry Oak.
3. Scurry Oak triggers, creating a creature token.
4. When the creature token enters the battlefield, Dazzling Angel triggers, causing you to gain 1 life.
5. Repeat from step 2.

This charming little engine starts spinning the moment you gain life to trigger Sunbond, which swells Scurry Oak with a +1/+1 counter. That counter creation immediately coaxes a 1/1 green Squirrel token out of Scurry Oak, and the token's arrival on the battlefield prompts Dazzling Angel to hand you another point of life. Because that new lifegain feeds right back into Sunbond, the loop runs on its own to flood the board with infinite creature tokens, endless lifegain, and astronomical power for Scurry Oak.