The Collector

When you cast this spell, search your hand, library,
graveyard, or exile for The Grubfather and put him into
play.

Whenever you cast a spell create a Trapped Grub, a token
artifact.

Tap a creature you control: Sacrifice target Trapped Grub
token, roll a d20:
1-5 | A random opponent creates a 4/4 Mimic token.
6-20 | Create a Grub token.