Bellowing Aegisaur + Scurry Oak + Terror of the Peaks

Bellowing Aegisaur

Scurry Oak

Terror of the Peaks

How it works

1. Give Bellowing Aegisaur indestructible by any method.
2. Deal damage to Bellowing Aegisaur.
3. Bellowing Aegisaur triggers, putting a +1/+1 counter on each other creature you control.
4. Scurry Oak triggers, creating a 1/1 Squirrel creature token.
5. The Squirrel enters the battlefield, triggering Terror of the Peaks, dealing 1 damage to Bellowing Aegisaur.
6. Repeat from step 3.

This brilliant loop transforms a single instance of damage into an infinite cascade of triggers, provided you can grant Bellowing Aegisaur indestructible. Once that foundation is set, every time Terror of the Peaks pings the Aegisaur with damage equal to a newly entered token's power, the Aegisaur's Enrage ability responds by placing a +1/+1 counter across your board. That influx of counters forces Scurry Oak to continuously spawn 1/1 green Squirrel creature tokens, which in turn feed right back into Terror of the Peaks to perpetuate the cycle.