Atla Palani, Nest Tender, Intruder Alarm, and Ashnod's Altar

Prerequisites

• Atla Palani, Nest Tender on the battlefield
• Intruder Alarm on the battlefield
• Ashnod's Altar on the battlefield
• Atla does not have summoning sickness
• available

Steps

1. Activate Atla by paying and tapping it, creating a 0/1 Egg creature token
2. The Egg enters the battlefield, triggering Intruder Alarm, untapping all creatures
3. Activate Ashnod's Altar by sacrificing the Egg, adding
4. The Egg dies, triggering Atla, causing you to reveal cards from the top of your library until you reveal a creature card, then put the creature card onto the battlefield and all other revealed cards on the bottom of your library
5. The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures
• Put all creature cards from your library onto the battlefield