Leyline of Singularity + Progenitor Mimic + Ratadrabik of Urborg

Mana needed: {4}{G}{U}

GWUB identity

Commander legal

The 3 combo pieces

How to execute it

  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.

What the combo produces