Ratadrabik of Urborg + Leyline of Singularity + Progenitor Mimic

Ratadrabik of Urborg

Leyline of Singularity

Progenitor Mimic

How it works

1. Cast Progenitor Mimic by paying its mana cost. Choose to have it enter as a copy of Ratadrabik.
2. Put Progenitor Mimic into your graveyard due to the legend rule.
3. When Progenitor Mimic dies, Ratadrabik triggers, creating a token copy of Progenitor Mimic that is a copy of Ratadrabik but is a 2/2 Zombie in addition to its other types.
4. Repeat from step 2 using the Progenitor Mimic token instead.