Altar of Dementia + One with the Kami + Umbral Mantle

G identity

Commander legal

The 3 combo pieces

What must be in place

One with the Kami attached to any creature you control.
Umbral Mantle attached to any creature you control except the creature with One with the Kami attached.

How to execute it

  1. Activate Altar of Dementia by sacrificing the creature with Umbral Mantle attached.
  2. When the creature dies, One with the Kami triggers, creating a number of 1/1 Spirit creature tokens equal to that creature's power.
  3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  4. Activate Umbral Mantle's equip ability by paying {0}, attaching it to a Spirit token.
  5. Repeat.

What the combo produces