Ashaya, Soul of the Wild + Altar of Dementia + Bumi, Eclectic Earthbender

Ashaya, Soul of the Wild

Altar of Dementia

Bumi, Eclectic Earthbender

How it works

1. Cast Bumi by paying its mana cost plus commander tax if applicable
2. When Bumi enters, its earthbend ability triggers, causing it to earthbend itself as it is a Forest due to Ashaya.
3. Activate Altar of Dementia by sacrificing Bumi
4. When Bumi dies, it triggers, returning itself from your graveyard to the battlefield tapped.
5. When Bumi enters, its earthbend ability triggers, causing it to earthbend itself as it is a Forest due to Ashaya.
6. Resolve the Altar of Dementia ability.
7. Repeat from step 3.