Go-Shintai of Life's Origin, Intruder Alarm, Faith Healer, and Faeburrow Elder

Prerequisites

• Go-Shintai of Life's Origin on the battlefield
• Intruder Alarm on the battlefield
• Faith Healer on the battlefield
• Faeburrow Elder on the battlefield
• Faeburrow Elder and Go-Shintai do not have summoning sickness
• You control another nontoken Shrine
• You control a black and a red permanent

Steps

1. Activate Faith Healer by sacrificing another nontoken Shrine, causing you to gain life equal to the Shrine's mana value
2. Activate Faeburrow Elder by tapping it, adding
3. Activate Go-Shintai by paying and tapping it, returning any Shrine from your graveyard to the battlefield
4. The Shrine enters the battlefield, triggering Go-Shintai, creating a 1/1 Shrine enchantment creature token
5. The Shrine token enters the battlefield, triggering Intruder Alarm, untapping all creatures
6. Repeat

Results

• Infinite creature tokens
• 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