Isochron Scepter, Pull from Eternity, Dralnu, Lich Lord, and Karn's Temporal Sundering

Prerequisites

• Isochron Scepter on the battlefield
• Pull from Eternity in exile
• Dralnu, Lich Lord on the battlefield
• Karn's Temporal Sundering in hand
• each turn available

Steps

1. Cast Karn's Temporal Sundering by paying , causing you to take an extra turn after this one and exile Karn's Temporal Sundering
2. Activate Isochron Scepter by paying and tapping it, casting a copy of Pull from Eternity without paying its mana cost
3. Resolve Pull from Eternity, putting Karn's Temporal Sundering into your graveyard from exile
4. Move to your next turn
5. Activate Dralnu by tapping it, giving Karn's Temporal Sundering flashback until end of turn
6. Cast Karn's Temporal Sundering from your graveyard by paying , causing you to take an extra turn after this one and exile Karn's Temporal Sundering
7. Repeat from step 2

Results

• Infinite turns