Ashaya, Soul of the Wild + Altar of Dementia + Toph, the Blind Bandit

Ashaya, Soul of the Wild

Altar of Dementia

Toph, the Blind Bandit

How it works

1. Cast Toph by paying its mana cost plus commander tax if applicable
2. When Toph 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 Toph
4. When Toph dies, it triggers, returning itself from your graveyard to the battlefield tapped.
5. When Toph 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.