Agatha's Soul Cauldron + Inquisitive Puppet + Cathars' Crusade

Agatha's Soul Cauldron

Inquisitive Puppet

Cathars' Crusade

How it works

1. Activate another creature you control that has a +1/+1 counter on it by exiling it, creating a 1/1 Human creature token.
2. When the Human enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
3. Repeat using the Human token instead.

This ingenious loop relies on Agatha's Soul Cauldron to grant Inquisitive Puppet’s sacrifice-and-exile ability to your creatures, turning them into self-recycling token factories. By exiling a creature you control, you generate a 1/1 white Human creature token, which immediately triggers Cathars' Crusade to distribute a fresh +1/+1 counter across your board. That new counter ensures the newly minted token is immediately equipped with the necessary enablement to activate Agatha's Soul Cauldron again, looping the process to flood the battlefield with endless entries, exits, and ever-growing stats.