Color Identity: W

Initial Card State
- Bellowing Aegisaur and Walking Ballista on the battlefield.
Notable Prerequisites
- Walking Ballista has at least two +1/+1 counters.
- You have a way to give Bellowing Aegisaur indestructible.
Steps
- Give Bellowing Aegisaur indestructible by any method.
- Activate Walking Ballisata by removing a +1/+1 counter from it, dealing 1 damage to Bellowing Aegisaur.
- Bellowing Aegisaur triggers, putting a +1/+1 counter on each other creature you control.
- Repeat from step 2.
Results
- Infinite +1/+1 counters on most creatures you control.
Bracket Tag
This combo has been estimated to be Oddball (Bracket 2-3+).