Ashaya, Soul of the Wild + Celestial Dawn + Emeria Shepherd + Phyrexian Altar

Ashaya, Soul of the Wild

Celestial Dawn

Emeria Shepherd

Phyrexian Altar

How it works

1. Cast any creature by paying its mana cost.
2. When the creature enters as a Plains due to Ashaya and Emeria Shepherd, Emeria Shepherd triggers.
3. Holding priority, activate Phyrexian Altar by sacrificing the creature cast in step 1.
4. Resolve the Emeria Shepherd trigger, returning another creature from your graveyard to the battlefield.
5. Repeat from step 2.

This loop is a masterclass in identity transformation, turning your creatures into a self-sustaining engine of resurrection and mana production. **Ashaya, Soul of the Wild** lays the groundwork by turning every nontoken creature you control into a Forest land, which **Celestial Dawn** immediately overrides and blankets as a Plains—a crucial interaction that ensures every single creature entering the battlefield doubles as a Plains for your triggers. That permanent type shift means any creature entering the battlefield triggers **Emeria Shepherd**'s landfall ability to return a card straight to the battlefield rather than just your hand. By sacrificing that creature to **Phyrexian Altar** in response, you generate the mana needed to keep casting while feeding the graveyard, allowing Emeria Shepherd's ability to loop infinitely and return every creature from your graveyard while generating infinite colored mana and death triggers.