Frenetic Efreet, Karplusan Minotaur, and Herald of Eternal Dawn

Prerequisites

• Frenetic Efreet on the battlefield
• Karplusan Minotaur on the battlefield
• Herald of Eternal Dawn on the battlefield

Steps

1. Activate Frenetic Efreet an arbitrarily large number of times by paying
2. Resolve a Frenetic Efreet ability, causing you to flip a coin
3. Karplusan Minotaur triggers
4. If you won the flip, it deals 1 damage to any target you choose
5. If you lost the flip, it deals 1 damage to a target of an opponent's choosing
6. 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
7. Repeat from step 2

Results

• Infinite damage