Activate Scorched Rusalka by paying {R} and sacrificing Jewel-Eyed Cobra.
Jewel-Eyed Cobra and Luminous Broodmoth triggers.
Resolve the Jewel-Eyed Cobra triggers, creating a treasure token.
Resolve the Luminous Broodmoth triggers, returning Jewel-Eyed Cobra to the battlefield with a flying counter on it.
Intruder Alarm triggers, untapping all creatures.
Resolve the Sorched Rusalka trigger, dealing 1 damage to any target.
Activate the treasure token by tapping and sacrificing it, adding {R}.
Activate Soul Diviner by tapping it, removing a flying counter from Jewel-Eyed Cobra.
Repeat.

Infinite damage

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Infinite mana creatures you control can produce

Infinite untap of creatures you control

Scorched Rusalka

Jewel-Eyed Cobra

Luminous Broodmoth

Soul Diviner

Intruder Alarm

Activate Scorched Rusalka by paying {R} and sacrificing Jewel-Eyed Cobra.
Jewel-Eyed Cobra dies, triggering itself, it's undying ability and Luminous Broodmoth.
Resolve the first Jewel-Eyed Cobra trigger, creating a Treasure token.
Resolve the Luminous Broodmoth trigger, returning Jewel-Eyed Cobra from your graveyard to the battlefield with a flying counter on it.
Resolve the second Jewel-Eyed Cobra trigger, failing to return it to the battlefield.
Resolve the Scorched Rusalka ability from step 1, dealing 1 damage to target player or planeswalker.
Activate the Treasure token by tapping and sacrificing it, adding {R}.
Activate Scorched Rusalka by paying {R} and sacrificing Jewel-Eyed Cobra.
Jewel-Eyed Cobra dies, triggering itself and it's undying ability.
Resolve the first Jewel-Eyed Cobra trigger, creating a Treasure token.
Resolve the second Jewel-Eyed Cobra trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
Resolve the Scorched Rusalka ability from step 8, dealing 1 damage to target player or planeswalker.
Activate the Treasure token by tapping and sacrificing it, adding {R}.
Activate Scorched Rusalka by paying {R} and sacrificing Jewel-Eyed Cobra.
Jewel-Eyed Cobra dies, triggering itself and Luminous Broodmoth.
Resolve the first Jewel-Eyed Cobra trigger, creating a Treasure token.
Resolve the Luminous Broodmoth trigger, returning Jewel-Eyed Cobra from your graveyard to the battlefield with a flying counter on it.
 Repeat from step 6.

Mikaeus, the Unhallowed

Activate Scorched Rusalka by paying {R} and sacrificing Jewel-Eyed Cobra.
Jewel-Eyed Cobra triggers, creating a treasure token.
Resolve the Jewel-Eyed Cobra's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
Intruder Alarm triggers, untapping all creatures.
Resolve the Sorched Rusalka trigger, dealing 1 damage to any target.
Activate the treasure token by tapping and sacrificing it, adding {R}.
Activate Soul Diviner by tapping it, removing a +1/+1 counter from Jewel-Eyed Cobra.
Repeat.

Combos with "Jewel-Eyed Cobra"