Magar of the Magic Strings + Final Fortune + Sundial of the Infinite

Prerequisites

• An opponent cannot block creatures you control.

Steps

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

Effects

• Infinite turns
• Lock