Time Sieve, Mycosynth Lattice, Delina, Wild Mage, and Lena, Selfless Champion

Prerequisites

• Time Sieve on the battlefield
• Mycosynth Lattice on the battlefield
• Delina, Wild Mage on the battlefield
• Lena, Selfless Champion on the battlefield
• Delina does not have summoning sickness and cannot be blocked and killed by an opponent
• You control at least four nontoken creatures

Steps

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

Results

• Infinite turns