Grumgully, the Generous + Agatha's Soul Cauldron + Kiki-Jiki, Mirror Breaker

Grumgully, the Generous

Agatha's Soul Cauldron

Kiki-Jiki, Mirror Breaker

How it works

1. Activate a creature you control with a +1/+1 counter on it using Kiki-Jiki's ability by tapping it, creating a token copy of any nonlegendary non-Human creature you control with haste that enters the battlefield with a +1/+1 counter on it due to Grumgully.
2. Repeat.

This brilliant loop turns your entire creature base into an army of mirrors, all powered by Agatha's Soul Cauldron holding the exiled essence of Kiki-Jiki, Mirror Breaker. Once Kiki-Jiki rests in exile beneath the Cauldron, its activation is granted to any creature you control that bears a +1/+1 counter. Enter Grumgully, the Generous, who ensures your non-Human creatures naturally enter the battlefield with those vital +1/+1 counters already in place. Tap your newly arrived creature to copy anything nonlegendary you control, and Grumgully's continuous bonus immediately rearms the fresh token to copy again, generating an unstoppable cascade of hasty replicas.