Ratadrabik of Urborg + Leyline of Singularity + Mercurial Pretender

Ratadrabik of Urborg

Leyline of Singularity

Mercurial Pretender

How it works

1. Cast Mercurial Pretender by paying its mana cost. Choose to have it enter as a copy of Ratadrabik.
2. Put Mercurial Pretender into your graveyard due to the legend rule.
3. When Mercurial Pretender dies, Ratadrabik triggers, creating a token copy of Mercurial Pretender 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 Mercurial Pretender token instead.