Rukarumel, Biologist + Promised Kannushi + Ashnod's Altar + Urn of Godfire

Rukarumel, Biologist

Promised Kannushi

Ashnod's Altar

Urn of Godfire

How it works

1. Activate Ashnod's Altar by sacrificing Promised Kannushi, adding CC.
2. When Promised Kannushi dies, its soulshift ability triggers, returning itself from your graveyard to your hand.
3. Activate Urn of Godfire's first ability by paying 2, adding .
4. Cast Promised Kannushi by paying .
5. Repeat.

This clever loop turns Ashnod's Altar into a self-contained engine by exploiting Rukarumel, Biologist's ability to rewrite creature types across all zones, ensuring Promised Kannushi is treated as a Spirit everywhere it goes. Once Rukarumel makes the loop work, Ashnod's Altar provides the exact colorless mana needed to fund Promised Kannushi's re-casting, while the soulshift trigger seamlessly returns the creature card straight back to your hand upon death. Meanwhile, Urn of Godfire acts as a vital mana converter, turning that colorless energy into the precise green mana required to cast Promised Kannushi again and repeat the entire cycle.