Color Identity: U, B

Prerequisites

  1.  All permanents on the battlefield.
  2. Royal Assassin
    Royal Assassin
    does not have summoning sickness.
  3. Thornbite Staff
    Thornbite Staff
    attached to
    Royal Assassin
    Royal Assassin
    .

Steps

  1. Whenever a creature enters the battlefield under an opponent's control, it enters tapped due to
    Frozen Aether
    Frozen Aether
    .
  2. Holding priority, activate
    Royal Assassin
    Royal Assassin
    by tapping it, destroying the creature.
  3. The creature dies, triggering
    Royal Assassin
    Royal Assassin
    , untapping
    Royal Assassin
    Royal Assassin
    .
  4. Repeat.

Results

  1. Destroy all creatures that enter the battlefield under an opponent's control.

Metadata

  1. In 11 decks according to EDHREC.
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