The Master, Transcendent + Intruder Alarm + Altar of Dementia + Mortuary

Prerequisites

• The Master does not have summoning sickness.
• You control another nontoken creature with power 1 or greater.

Steps

1. 1Activate Altar of Dementia by sacrificing another nontoken creature with power 1 or greater.
2. 2When the creature dies, Mortuary triggers, putting the creature from your graveyard on top of your library.
3. 3Resolve the Altar of Dementia ability, causing you to mill the creature from your library.
4. 4Activate The Master by tapping it, putting the creature from your graveyard onto the battlefield.
5. 5When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
6. 6Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite mana creatures you control can produce
• Infinite self-mill
• Infinite untap of creatures