Emry, Lurker of the Loch, Dross Scorpion, Encroaching Mycosynth, and Walking Ballista

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Dross Scorpion on the battlefield
• Encroaching Mycosynth on the battlefield
• Walking Ballista in the graveyard
• Emry does not have summoning sickness

Steps

1. Activate Emry by tapping it, allowing you to cast Walking Ballista from your graveyard this turn
2. Cast Walking Ballista by paying
3. Walking Ballista enters the battlefield and dies as a state-based action due to having zero toughness
4. Dross Scorpion triggers, untapping Emry
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite storm count