Toph, the First Metalbender + Blasting Station + Encroaching Mycosynth

Toph, the First Metalbender

Blasting Station

Encroaching Mycosynth

How it works

1. Cast the earthbending creature by paying its mana cost, causing it to enter as an artifact land creature due to Encroaching Mycosynth and Toph.
2. When that creature enters, it triggers itself and Blasting Station.
3. Resolve the creature's triggered earthbend ability, causing it to become a land creature with haste, putting at least one +1/+1 counter on itself, and creating a delayed triggered ability.
4. Activate Blasting Station by tapping it and sacrificing that creature.
5. When that creature dies, the delayed ability from step 2 triggers, causing it to return to the battlefield tapped as an artifact land creature.
6. Repeat from step 2 any number of times.
7. Resolve all activated abilities from Blasting Station.