Grim Poppet + Mirrorhall Mimic // Ghastly Mimicry + Hapatra, Vizier of Poisons

Grim Poppet

Mirrorhall Mimic // Ghastly Mimicry

Hapatra, Vizier of Poisons

How it works

1. Activate Grim Poppet by removing a -1/-1 counter from it, putting a -1/-1 counter on Mirrorhall Mimic
2. Hapatra triggers, creating a creature token.
3. Activate Mirrorhall Mimic by removing a -1/-1 counter from it, putting a -1/-1 counter on Grim Poppet.
4. Hapatra triggers, creating a creature token.
5. Repeat.