Heliod, Sun-Crowned + Social Climber + Scurry Oak

Heliod, Sun-Crowned

Social Climber

Scurry Oak

How it works

1. Gain life.
2. Heliod 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, Social Climber triggers, causing you to gain 1 life.
5. Repeat from step 2.

This loop transforms a single instance of lifegain into a self-sustaining engine by turning every new permanent into fuel for the next. It all starts when Heliod, Sun-Crowned rewards you for gaining life by placing a +1/+1 counter onto Scurry Oak. That counter triggers Scurry Oak to create a Squirrel token, and the arrival of that new creature immediately prompts Social Climber to trigger and grant you 1 life. That fresh increment of life loops right back into Heliod, Sun-Crowned to place another counter on Scurry Oak, allowing you to endlessly churn out tokens, counters, and life.