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

Time Sieve

Mycosynth Lattice

Delina, Wild Mage

Lena, Selfless Champion

How it works

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.

This ingenious loop allows you to secure infinite turns by leveraging Mycosynth Lattice's comprehensive static ability, which turns every single permanent on the battlefield into an artifact. With that global transformation active, when you declare Delina, Wild Mage as an attacker, her triggered ability copies Lena, Selfless Champion into play. The resulting Lena token immediately triggers to generate a fresh batch of 1/1 Soldier tokens, which count as artifacts thanks to the Lattice. You then cash in that exact quorum of five artifact creatures—the Lena token and four Soldiers—to Time Sieve's activated ability, taking an extra turn and resetting the board to repeat the entire process indefinitely.