Lethal Vapors + Mycosynth Lattice + Collector Ouphe

Prerequisites

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Steps

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

Effects

• Activated abilities can't be activated
• Destroy all creatures that enter the battlefield
• Lock
• Mass Land Denial