Tale of Katara and Toph + Animation Module + Earthcraft + Yarus, Roar of the Old Gods

Tale of Katara and Toph

Animation Module

Earthcraft

Yarus, Roar of the Old Gods

How it works

1. Activate a creature by tapping it, adding 1.
2. The creature's ability granted to it by Tale of Katara and Toph triggers, putting a +1/+1 counter on the creature.
3. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
4. Repeat.
5. Activate a basic land by tapping it, adding 1.
6. Activate Earthcraft by tapping a creature.
7. The creature's ability granted to it by Tale of Katara and Toph triggers, putting a +1/+1 counter on the creature.
8. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
9. Resolve the Earthcraft ability, untapping a basic land.
10. Repeat.

This loop thrives at the intersection of permanent tapping and growth, turning every exertion of your board into an expanding army. Earthcraft serves as the primary engine by letting you tap your creatures to untap basic lands, which immediately triggers the static grant from Tale of Katara and Toph to place a +1/+1 counter on the tapped creature the first time it taps each turn. Each counter placed then trips Animation Module's reflexive trigger, letting you funnel your mana back into creating a fresh 1/1 Servo artifact creature token to keep the cycle going. Meanwhile, Yarus, Roar of the Old Gods sits comfortably on the field ready to grant your growing forces haste and capitalize on any combat or graveyard action your tokens might stumble into.