Magar of the Magic Strings, Obeka, Brute Chronologist, and Final Fortune

Prerequisites

• Magar of the Magic Strings on the battlefield
• Obeka, Brute Chronologist on the battlefield
• Final Fortune in hand
• available

Steps

1. Cast Final Fortune by paying its mana cost, causing you to take an extra turn after this one and to lose the game at the beginning of that turn's end step
2. Activate Magar by paying , noting Final Fortune and putting it face down on the battlefield as a 3/3 creature
3. During your next turn, deal combat damage to an opponent using the face down creature that has Final Fortune noted
4. The creature triggers, casting a copy of Final Fortune without paying its mana cost
5. Resolve the copy, causing you to take an extra turn after this one and to lose the game at the beginning of that turn's end step
6. Activate Obeka by tapping it, causing you to end the turn
7. This will prevent the Final Fortune trigger from causing you to lose the game
8. Repeat from step 3

Results

• Infinite turns