Shilgengar, Sire of Famine + Herd Baloth + Yuna, Grand Summoner

Shilgengar, Sire of Famine

Herd Baloth

Yuna, Grand Summoner

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 Shilgengar by sacrificing the creature token.
6. When the creature token dies, Yuna triggers, putting at least one +1/+1 counter on Herd Baloth
7. Repeat steps 3 and 4 once.
8. Resolve the Shilgengar ability.
9. Repeat from step 5.