Agatha's Soul Cauldron + The Thing, Ben Grimm + Walking Ballista

Agatha's Soul Cauldron

The Thing, Ben Grimm

Walking Ballista

How it works

1. Activate The Thing by using Walking Ballista's ability by removing a +1/+1 counter from it, dealing 1 damage to any target.
2. The Thing triggers, putting two +1/+1 counters on it.
3. Repeat.

This clever loop turns Walking Ballista into a self-contained artillery piece by feeding its activated ability directly into The Thing, Ben Grimm. Because Agatha's Soul Cauldron holds the exile-and-counter technology and grants activated abilities to any creature you control with a +1/+1 counter, Walking Ballista's counter-removal ability can be played right off The Thing. Every time The Thing uses that ping to deal damage, its own triggered ability recognizes the damage dealt to a player and rewards it with two fresh +1/+1 counters—surpassing the single counter spent and yielding infinite damage and infinite +1/+1 counters.