Red Death, Shipwrecker, Xyris, the Writhing Storm, and Intruder Alarm

Prerequisites

• Red Death, Shipwrecker on the battlefield
• Xyris, the Writhing Storm on the battlefield
• Intruder Alarm on the battlefield

Steps

1. Activate Red Death by tapping it, adding and goading a creature an opponent controls and causing that opponent to draw a card
2. Xyris's first ability triggers, creating a 1/1 Snake creature token
3. When the Snake enters, Intruder Alarm triggers, untapping all creatures
4. Repeat

Results

• Infinite ETB
• Infinite card draw for any number of opponents
• Infinite creature tokens
• Infinite draw triggers for any number of opponents
• Infinite mana creatures you control can produce
• Infinite untap of creatures