Yedora, Grave Gardener + Ashnod's Altar + Rattleclaw Mystic

Yedora, Grave Gardener

Ashnod's Altar

Rattleclaw Mystic

How it works

1. Activate Ashnod's Altar by sacrificing Rattleclaw Mystic, adding CC.
2. When Rattleclaw Mystic dies, Yedora triggers, returning Rattleclaw Mystic from your graveyard to the battlefield face down as a Forest land.
3. Activate Rattleclaw Mystic's morph ability by paying 2, turning it face up.
4. Rattleclaw Mystic triggers, adding .
5. Repeat.

This loop transforms your battlefield into an infinite mana engine by exploiting a clever rules interaction with face-down permanents. Whenever you sacrifice Rattleclaw Mystic to Ashnod's Altar, Yedora, Grave Gardener immediately rescues it from the graveyard and brings it back to the battlefield face down as a Forest land. Because a face-down creature enters the battlefield with no memory of its previous status, you can pay its morph cost to turn it face up, triggering its ability to generate {G}{U}{R} mana. Feeding the mystic back to the altar gives you the colorless mana needed to recast the morph cost while profiting in every color of mana, fueling an endless cycle of sacrifices and rebirths.