Umbral Collar Zealot + Scurry Oak + Host of the Hereafter

Umbral Collar Zealot

Scurry Oak

Host of the Hereafter

How it works

1. Cast Scurry Oak by paying its mana cost.
2. When Scurry Oak 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 Scurry Oak.
3. Scurry Oak 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, Host of the Hereafter triggers, putting at least one +1/+1 counter on Scurry Oak
7. Repeat steps 3 and 4 once.
8. Resolve the Umbral Collar Zealot ability.
9. Repeat from step 5.