Agatha's Soul Cauldron + Inquisitive Puppet + Combine Guildmage

Agatha's Soul Cauldron

Inquisitive Puppet

Combine Guildmage

How it works

1. Activate Combine Guildmage's first ability by paying 1 and tapping it, causing each creature you control to enter the battlefield with a +1/+1 counter on it this turn.
2. Activate another creature you control that has a +1/+1 counter on it by exiling it, creating a 1/1 Human creature token that enters the battlefield with a +1/+1 counter on it due to Combine Guildmage.
3. Repeat step 2 using the Human token instead.

This clever loop turns a simple self-sacrificing trick into an endless cycle of creation by leveraging Agatha's Soul Cauldron to grant activated abilities across your board. First, Combine Guildmage sets the stage by ensuring every new creature enters with a +1/+1 counter, which also satisfies the Cauldron's prerequisite for granting abilities to your creatures. By exiling Inquisitive Puppet, you trigger its built-in sacrifice ability to spawn a fresh Human token, and because Agatha's Soul Cauldron can exile that token from the graveyard right back onto a creature, you can continually recycle the Puppet's token-making magic.