Ratadrabik of Urborg + Leyline of Singularity + Moritte of the Frost
Ratadrabik of Urborg
Leyline of Singularity
Moritte of the Frost
Draw the gameInfinite creature ETBInfinite creature LTBInfinite death triggers
How it works
Cast Moritte of the Frost by paying its mana cost. Choose to have it enter as a copy of Ratadrabik.
Put Moritte of the Frost into your graveyard due to the legend rule.
When Moritte of the Frost dies, Ratadrabik triggers, creating a token copy of Moritte of the Frost that is a copy of Ratadrabik but is a 2/2 Zombie in addition to its other types.
Repeat from step 2 using the Moritte of the Frost token instead.