Scorched Rusalka, Gleaming Barrier, Mikaeus, the Unhallowed, Soul Diviner, and Intruder Alarm

Prerequisites

• Scorched Rusalka on the battlefield
• Gleaming Barrier on the battlefield
• Mikaeus, the Unhallowed on the battlefield
• Soul Diviner on the battlefield
• Intruder Alarm on the battlefield
• Soul Diviner does not have summoning sickness
• available

Steps

1. Activate Scorched Rusalka by paying and sacrificing Gleaming Barrier
2. Gleaming Barrier triggers, creating a treasure token
3. Resolve the Gleaming Barrier's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it
4. Intruder Alarm triggers, untapping all creatures
5. Resolve the Sorched Rusalka trigger, dealing 1 damage to any target
6. Activate the treasure token by tapping and sacrificing it, adding
7. Activate Soul Diviner by tapping it, removing a +1/+1 counter from Gleaming Barrier
8. Repeat

Results

• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers