Fire Ants + Cacophodon + Rite of Passage

Fire Ants

Cacophodon

Rite of Passage

How it works

1. Activate Fire Ants by tapping it, dealing 1 damage to each other creature without flying.
2. Rite of Passage triggers for each creature you control that was dealt damage this way, and Cacophodon triggers once.
3. Resolve all Rite of Passage triggers, putting a +1/+1 counter on each creature you control that was dealt damage.
4. Resolve the Cacophodon trigger, untapping Fire Ants.
5. Repeat.