Efreet Flamepainter, Isochron Scepter, Pull from Eternity, and Karn's Temporal Sundering

Prerequisites

• Efreet Flamepainter on the battlefield
• Isochron Scepter on the battlefield
• Pull from Eternity in exile
• Karn's Temporal Sundering in the graveyard
• You control at least one legendary creature and/or planeswalker
• Efreet Flamepainter does not have summoning sickness and cannot be blocked by an opponent
• each turn available

Steps

1. Deal combat damage to an opponent using Efreet Flamepainter
2. Efreet Flamepainter triggers, causing you to cast Karn's Temporal Sundering from your graveyard without paying its mana cost
3. Resolve Karn's Temporal Sundering, causing you to take an extra turn after this one and exile it
4. Activate Isochron Scepter by paying and tapping it, casting a copy of Pull from Eternity without paying its mana cost
5. Resolve Pull from Eternity, putting Karn's Temporal Sundering from exile into your graveyard
6. Repeat each turn

Results

• Infinite turns