Agatha of the Vile Cauldron + Agatha's Soul Cauldron + Crystalline Crawler + Angry Rabble

Agatha of the Vile Cauldron

Agatha's Soul Cauldron

Crystalline Crawler

Angry Rabble

How it works

1. Activate Crystalline Crawler using Angry Rabble's ability by paying , putting two +1/+1 counters on it.
2. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding .
3. Repeat.

This ingenious engine turns Crystalline Crawler into a self-sustaining mana factory by leveraging the activated ability-granting power of Agatha's Soul Cauldron. Because Agatha of the Vile Cauldron reduces the cost of creature activated abilities based on her power, and Agatha's Soul Cauldron lets you spend mana of any color, you can cheaply activate the massive pump ability of Angry Rabble applied directly onto the Crawler. By continuously removing and replacing those +1/+1 counters to generate mana, you net an infinite supply of colored mana, fuel infinitely large creatures, and rack up endless counters along the way.