Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- You have a way to give Bellowing Aegisaur indestructible.
- You have a way to deal damage to Bellowing Aegisaur.
Steps
- Give Bellowing Aegisaur indestructible by any method.
- Deal damage to Bellowing Aegisaur, with all but 1 of that damage being prevented by Temple Altisaur.
- Bellowing Aegisaur, Ghyrson Starn, and Spark Double trigger.
- Resolve the Spark Double trigger, dealing 2 damage to any target.
- Resolve the Ghyrson Starn trigger, dealing 2 damage to Bellowing Aegisaur, with all but 1 of that damage being prevented by Temple Altisaur.
- Spark Double and Bellowing Aegisaur trigger.
- Resolve the Bellowing Aegisaur trigger, putting a +1/+1 counter on each other creature you control.
- Resolve the Spark Double trigger, dealing 2 damage to Bellowing Aegisaur, with all but 1 of that damage being prevented by Temple Altisaur.
- Ghyrson Starn and Bellowing Aegisaur trigger.
- Repeat from step 5.
Results
- Infinite +1/+1 counters on most creatures you control.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).