Jewel-Eyed Cobra, Luminous Broodmoth, Mikaeus, the Unhallowed, and Scorched Rusalka

Prerequisites

• Jewel-Eyed Cobra on the battlefield
• Luminous Broodmoth on the battlefield
• Mikaeus, the Unhallowed on the battlefield
• Scorched Rusalka on the battlefield
• available

Steps

1. Activate Scorched Rusalka by paying and sacrificing Jewel-Eyed Cobra
2. Jewel-Eyed Cobra dies, triggering itself, it's undying ability and Luminous Broodmoth
3. Resolve the first Jewel-Eyed Cobra trigger, creating a Treasure token
4. Resolve the Luminous Broodmoth trigger, returning Jewel-Eyed Cobra from your graveyard to the battlefield with a flying counter on it
5. Resolve the second Jewel-Eyed Cobra trigger, failing to return it to the battlefield
6. Resolve the Scorched Rusalka ability from step 1, dealing 1 damage to target player or planeswalker
7. Activate the Treasure token by tapping and sacrificing it, adding
8. Activate Scorched Rusalka by paying and sacrificing Jewel-Eyed Cobra
9. Jewel-Eyed Cobra dies, triggering itself and it's undying ability
10. Resolve the first Jewel-Eyed Cobra trigger, creating a Treasure token
11. Resolve the second Jewel-Eyed Cobra trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it
12. Resolve the Scorched Rusalka ability from step 8, dealing 1 damage to target player or planeswalker
13. Activate the Treasure token by tapping and sacrificing it, adding
14. Activate Scorched Rusalka by paying and sacrificing Jewel-Eyed Cobra
15. Jewel-Eyed Cobra dies, triggering itself and Luminous Broodmoth
16. Resolve the first Jewel-Eyed Cobra trigger, creating a Treasure token
17. Resolve the Luminous Broodmoth trigger, returning Jewel-Eyed Cobra from your graveyard to the battlefield with a flying counter on it
18. Repeat from step 6

Results

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