Scorched Rusalka + Jewel-Eyed Cobra + Mikaeus, the Unhallowed + Soul Diviner + Intruder Alarm

Scorched Rusalka

Jewel-Eyed Cobra

Mikaeus, the Unhallowed

Soul Diviner

Intruder Alarm

How it works

1. Activate Scorched Rusalka by paying and sacrificing Jewel-Eyed Cobra.
2. Jewel-Eyed Cobra triggers, creating a treasure token.
3. Resolve the Jewel-Eyed Cobra'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 Jewel-Eyed Cobra.
8. Repeat.