the front side of Lethal Vapors
the back of a classic MtG card
the front side of Encroaching Mycosynth
the back of a classic MtG card
the front side of Null Rod
the back of a classic MtG card

Color Identity: U, B

Initial Card State

  1.  All permanents on the battlefield.

Steps

  1. Whenever a creature enters the battlefield, Lethal Vapors triggers, destroying that creature.
  2. Because Null Rod prevents Lethal Vapors's activated ability from being activated, it cannot be destroyed due to its ability.

Results

  1. Destroy all creatures that enter the battlefield.

Metadata

  1. In 2 decks according to EDHREC.
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