Audacious Reshapers, Mortuary, Intruder Alarm, and Onulet

Prerequisites

• Audacious Reshapers on the battlefield
• Mortuary on the battlefield
• Intruder Alarm on the battlefield
• Onulet on the battlefield
• Audacious Reshapers does not have summoning sickness

Steps

1. Activate Audacious Reshapers by tapping it and sacrificing Onulet
2. When Onulet dies, it and Mortuary trigger
3. Resolve the Onulet trigger, causing you to gain 2 life
4. Resolve the Mortuary trigger, putting Onulet on top of your library from your graveyard
5. Resolve the Audacious Reshapers ability, revealing Onulet from the top of your library, then putting it onto the battlefield and dealing 1 damage to you
6. When Onulet enters the battlefield, Intruder Alarm triggers, untapping all creatures
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures