Thornbite Staff + Viridian Longbow
All permanents on the battlefield. Viridian Longbow and Thornbite Staff attached to a creature with deathtouch. That creature does not have summoning sickness.
- Activate the creature's ability from Viridian Longbow by tapping it, dealing 1 damage to any target creature an opponent controls and destroying that target due to deathtouch
- When that target dies, the creature's ability from Thornbite Staff triggers, untapping itself
- You may also repeat this loop whenever a creature enters the battlefield under an opponent's control
Destroy all creatures your opponents control. Destroy all creatures that enter the battlefield under an opponent's control.