Audacious Reshapers, Mortuary, Intruder Alarm, and Guardian Automaton

Prerequisites

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

Steps

1. Activate Audacious Reshapers by tapping it and sacrificing Guardian Automaton
2. When Guardian Automaton dies, it and Mortuary trigger
3. Resolve the Guardian Automaton trigger, causing you to gain 3 life
4. Resolve the Mortuary trigger, putting Guardian Automaton on top of your library from your graveyard
5. Resolve the Audacious Reshapers ability, revealing Guardian Automaton from the top of your library, then putting it onto the battlefield and dealing 1 damage to you
6. When Guardian Automaton 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