Horobi, Death's Wail, Dross Scorpion, Mycosynth Lattice, and Liquimetal Torque

Prerequisites

• Horobi, Death's Wail on the battlefield
• Dross Scorpion on the battlefield
• Mycosynth Lattice on the battlefield
• Liquimetal Torque on the battlefield

Steps

1. Activate Liquimetal Torque's second ability by tapping it, targeting any creature an opponent controls
2. Horobi triggers, destroying that creature
3. When the creature dies, Dross Scorpion triggers, untapping Liquimetal Torque
4. Repeat
5. You may also repeat this loop whenever a creature enters the battlefield under an opponent's control

Results

• Destroy all creatures that enter the battlefield under an opponent's control
• Destroy any number of creatures opponents control