How can you create a combo with Mikaeus, the Unhallowed, Cauldron of Souls, Dross Scorpion, Carrion Feeder?
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[START OF COMBO]This combo can be formed with Mikaeus, the Unhallowed, Cauldron of Souls, Dross Scorpion, Carrion Feeder

Color identity: B
Mana cost: 
Steps:
  1. Activate Cauldron of Souls by tapping it, giving Dross Scorpion persist until end of turn.
  2. Activate Carrion Feeder by sacrificing Dross Scorpion.
  3. Dross Scorpion dies, triggering its ability, its undying ability and its persist ability.
  4. Resolve the first Dross Scorpion trigger, untapping Cauldron of Souls.
  5. Resolve the Dross Scorpion persist trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  6. Activate Carrion Feeder by sacrificing Dross Scorpion.
  7. Dross Scorpion dies, triggering its ability and its undying ability.
  8. Resolve the first Dross Scorpion trigger, untapping Cauldron of Souls.
  9. Resolve the second Dross Scorpion trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  10. Activate Carrion Feeder by sacrificing Dross Scorpion.
  11. Dross Scorpion dies, triggering its ability and its persist ability.
  12. Repeat from step 4.
  13. Resolve all Carrion Feeder abilities, putting infinite +1/+1 counters on it.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Carrion Feeder
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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