Morophon, the Boundless + Honest Rutstein + Progenitor Mimic

Morophon, the Boundless

Honest Rutstein

Progenitor Mimic

How it works

1. Cast Progenitor Mimic by paying its mana cost. Choose to have it enter as a copy of Honest Rutstein.
2. Put Honest Rutstein into your graveyard due to the legend rule.
3. Progenitor Mimic triggers, returning Honest Rutstein from your graveyard to your hand.
4. Cast Honest Rutstein by paying 0 due to Morophon and Progenitor Mimic.
5. Put Honest Rutstein into your graveyard due to the legend rule.
6. Honest Rutstein triggers, returning it from your graveyard to your hand.
7. Repeat from step 4.