Time Sieve + Encroaching Mycosynth + Delina, Wild Mage + Izoni, Thousand-Eyed

Prerequisites

• Delina does not have summoning sickness and cannot be blocked and killed by an opponent.
• You have at least four creature cards in your graveyard.

Steps

1. 1Declare Delina as an attacker.
2. 2Delina triggers, creating at least one nonlegendary token copy of Izoni with haste.
3. 3When the Izoni token enters the battlefield, it triggers, creating at least four 1/1 Insect creature tokens.
4. 4Activate Time Sieve by tapping it, sacrificing the Izoni token and the Insect tokens, causing you to take an extra turn after this one.
5. 5Repeat each turn.

Effects

• Infinite turns
• Lock