Time Sieve + Myr Battlesphere + Sword of Light and Shadow

Prerequisites

• Sword of Light and Shadow attached to a creature you control that does not have summoning sickness and that cannot be blocked by an opponent.

Steps

1. 1Deal combat damage to an opponent using the creature that has Sword of Light and Shadow attached.
2. 2Sword of Light and Shadow triggers, causing you to gain three life and return Myr Battlesphere from your graveyard to your hand.
3. 3Cast Myr Battlesphere by paying .
4. 4When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr creature tokens.
5. 5Activate Time Sieve by tapping it, sacrificing Myr Battlesphere and sacrificing the four Myr tokens, causing you to take an extra turn after this one.
6. 6Repeat each turn.

Effects

• Infinite turns
• Lock