Frenetic Efreet, Karplusan Minotaur, and Gideon of the Trials

Prerequisites

• Frenetic Efreet on the battlefield
• Karplusan Minotaur on the battlefield
• Gideon of the Trials in hand or on the battlefield or in the command zone or in exile or in the graveyard or in the library

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 Gideon of the Trials, and Karplusan Minotaur cannot be destroyed due to its indestructibility or protection
7. Repeat from step 2

Results

• Infinite damage