Propagator Drone + Earthcraft + Biomancer's Familiar

Propagator Drone

Earthcraft

Biomancer's Familiar

How it works

1. Activate a basic Forest by tapping it, adding .
2. Activate Propagator Drone by paying 1, creating a 0/1 Eldrazi Spawn creature token.
3. Activate Earthcraft by tapping the Eldrazi Spawn, untapping the basic Forest.
4. Activate the Eldrazi Spawn by sacrificing it, adding C.
5. Repeat.

This intricate loop transforms a basic Forest into a factory for infinite sacrifices, death triggers, and creature entries by weaving together mana acceleration and cost reduction. Biomancer's Familiar is the engine's secret catalyst, trimming the activation cost of Propagator Drone down to a manageable single green mana. Once Propagator Drone churns out an Eldrazi Spawn token, Earthcraft steps in to immediately tap that fresh token to untap your basic Forest, ensuring your mana source stays primed while the Spawn itself is simultaneously sacrificed for colorless mana to pay your costs.