Feldon of the Third Path, Diamond Lion, Thornbite Staff, and Purphoros, God of the Forge

Prerequisites

• Feldon of the Third Path on the battlefield
• Diamond Lion in the graveyard
• Thornbite Staff on the battlefield
• Purphoros, God of the Forge on the battlefield
• Feldon of the Third Path does not have summoning sickness
• Thornbite Staff attached to Feldon of the Third Path
• available

Steps

1. Activate Feldon of the Third Path by paying and tapping it, creating a token copy of Diamond Lion with haste
2. Purphoros triggers, dealing 2 damage to each of your opponent
3. Activate Diamond Lion by tapping it, discarding your hand, and sacrificing it, adding
4. Thornbite Staff triggers, untapping Feldon of the Third Path
5. Repeat

Results

• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers