the front side of Keiga, the Tide Star
the back of a classic MtG card
the front side of Nim Deathmantle
the back of a classic MtG card
the front side of Ashnod's Altar
the back of a classic MtG card

Color Identity: U

Initial Card State

  1.  All permanents on the battlefield.

Steps

  1. Whenever an opponent controls a creature, activate Ashnod's Altar by sacrificing Keiga, adding ({C} magic symbol)  ({C} magic symbol)  .
  2. When Keiga dies, it and Nim Deathmantle trigger.
  3. Resolve the Keiga trigger, causing you to gain control of a creature an opponent controls.
  4. Activate Ashnod's Altar by sacrificing the creature you gained control of in step 3, adding ({C} magic symbol)  ({C} magic symbol)  .
  5. Resolve the Nim Deathmantle trigger from step 2, causing you to pay ({4} magic symbol)   to return Keiga from your graveyard to the battlefield, and attach Nim Deathmantle to it.
  6. Repeat as desired and/or whenever a creature enters the battlefield under an opponent's control.

Results

  1. Gain control of all creatures opponents control and sacrifice them.
  2. Gain control of any creature that enters the battlefield under an opponent's control.

Metadata

  1. In 140 decks according to EDHREC.
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