Isochron Scepter, Final Fortune, and Platinum Angel

Prerequisites

• Isochron Scepter on the battlefield
• Final Fortune in exile
• Platinum Angel on the battlefield
• each turn available

Steps

1. Activate Isochron Scepter by paying , casting a copy of Final Fortune without paying its mana cost
2. Resolve the Final Fortune, taking an extra turn after this one
3. Repeat

Results

• Infinite turns