We Ride at Dawn, Acererak the Archlich, and Intruder Alarm

Prerequisites

• We Ride at Dawn on the battlefield
• Acererak the Archlich in hand
• Intruder Alarm on the battlefield
• You have not completed or are currently venturing in Tomb of Annihilation
• You control at least three untapped creatures, one of which must be black

Steps

1. Cast Acererak the Archlich by tapping three creatures you control, one of which must be black
2. When Acererak the Archlich enters the battlefield, its first ability and Intruder Alarm trigger
3. Resolve the Acererak the Archlich trigger, returning it to your hand from the battlefield and causing you to venture into Lost Mine of Phandelver
4. Resolve the Intruder Alarm trigger, untapping all creatures
5. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite +1/+1 counters
• Near-infinite colored mana
• Near-infinite creature tokens
• Near-infinite ETB
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Near-infinite lifeloss
• Near-infinite LTB
• Near-infinite storm count
• Near-infinite Treasure tokens
• Near-infinite untap of all creatures
• Near-infinite ventures into the dungeon