Umbral Collar Zealot + Herd Baloth + Reyhan, Last of the Abzan

Umbral Collar Zealot

Herd Baloth

Reyhan, Last of the Abzan

How it works

1. Cast Herd Baloth by paying its mana cost.
2. When Herd Baloth enters, the effect that adds +1/+1 counters to entering creatures triggers or applies its replacement effect, putting at least one +1/+1 counter on Herd Baloth.
3. Herd Baloth triggers, creating a creature token.
4. When the creature token enters, that same effect causes you to place at least one +1/+1 counter on it.
5. Activate Umbral Collar Zealot by sacrificing the creature token.
6. When the creature token dies, Reyhan triggers, putting at least one +1/+1 counter on Herd Baloth
7. Repeat steps 3 and 4 once.
8. Resolve the Umbral Collar Zealot ability.
9. Repeat from step 5.