the front side of Mephidross Vampire
the back of a classic MtG card
the front side of Walking Ballista
the back of a classic MtG card

Color Identity: B

Initial Card State

  1.  Mephidross Vampire and Walking Ballista on the battlefield.

Notable Prerequisites

  1. Walking Ballista has at least two +1/+1 counters on it.

Steps

  1. Activate Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to any creature an opponent controls.
  2. Walking Ballista triggers, putting a +1/+1 counter on itself.
  3. Repeat as desired.
  4. You may also repeat this loop whenever a creature enters the battlefield under an opponent's control.

Results

  1. Destroy any number of creatures opponents control.
  2. Infinite damage to creatures.
  3. Destroy each creature that enters the battlefield under an opponent's control.

Metadata

  1. This combo produces a lock.
  2. In 110 decks according to EDHREC.
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