Requires

Yarus, Roar of the Old Gods must be on the battlefield. Obscuring Aether must be on the battlefield. Earthcraft must be on the battlefield. Ashnod's Altar must be on the battlefield. You control at least one basic Forest. Mana needed:

Steps

1. Activate a basic Forest by tapping it, adding .
2. Activate Obscuring Aether by paying , turning it face-down as a 2/2 creature.
3. Activate Earthcraft by tapping Obscuring Aether, untapping the Forest.
4. Activate Ashnod's Altar by sacrificing Obscuring Aether, adding .
5. When Obscuring Aether dies, Yarus' second ability triggers, returning it from your graveyard to the battlefield face-down, then turning it face-up.
6. Repeat.

Results