the front side of Archelos, Lagoon Mystic
the back of a classic MtG card
the front side of Royal Assassin
the back of a classic MtG card
the front side of Thornbite Staff
the back of a classic MtG card

Color Identity: B, G, U

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. Archelos is tapped.
  2. Royal Assassin does not have summoning sickness.
  3. Thornbite Staff attached to Royal Assassin.

Steps

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

Results

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

Metadata

  1. In 19 decks according to EDHREC.
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