Frenetic Efreet + Karplusan Minotaur + Herald of Eternal Dawn

Frenetic Efreet

Karplusan Minotaur

Herald of Eternal Dawn

How it works

1. Activate Frenetic Efreet an arbitrarily large number of times by paying 0.
2. Resolve a Frenetic Efreet ability, causing you to flip a coin.
3. Karplusan Minotaur triggers. If you won the flip, it deals 1 damage to any target you choose. If you lost the flip, it deals 1 damage to a target of an opponent's choosing. You cannot lose the game due to this damage due to Herald of Eternal Dawn, and Karplusan Minotaur and Herald of Eternal Dawn cannot be destroyed due to its indestructibility or protection.
4. Repeat from step 2.