Carrion Feeder + Cauldron of Souls Combos

10 known combos featuring both cards in Commander

Infinite death triggers Infinite ETB Infinite LTB Infinite sacrifice triggers Infinite +1/+1 counters on a creature

Combo 1 with Mikaeus, the Unhallowed + Dross Scorpion

Results: Infinite +1/+1 counters on a creature · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
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.

Combo 2 with Dross Scorpion + Biotransference

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on a creature
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Carrion Feeder by sacrificing the creature with bloodthirst.
  3. When the creature dies, its persist ability and Dross Scorpion trigger.
  4. Resolve the persist trigger, returning the creature from your graveyard to the battlefield, which enters the battlefield with at least one +1/+1 counter on it due to its bloodthirst ability.
  5. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
  6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  7. Repeat.

Combo 3 with Dross Scorpion + Encroaching Mycosynth

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on a creature
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Carrion Feeder by sacrificing the creature with bloodthirst.
  3. When the creature dies, its persist ability and Dross Scorpion trigger.
  4. Resolve the persist trigger, returning the creature from your graveyard to the battlefield, which enters the battlefield with at least one +1/+1 counter on it due to its bloodthirst ability.
  5. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
  6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  7. Repeat.

Combo 4 with Dross Scorpion + Mycosynth Lattice

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on a creature
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Carrion Feeder by sacrificing the creature with bloodthirst.
  3. When the creature dies, its persist ability and Dross Scorpion trigger.
  4. Resolve the persist trigger, returning the creature from your graveyard to the battlefield, which enters the battlefield with at least one +1/+1 counter on it due to its bloodthirst ability.
  5. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
  6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  7. Repeat.

Combo 5 with Mikaeus, the Unhallowed + Intruder Alarm + Animate Artifact

Results: Infinite +1/+1 counters on a creature · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mana creatures you control can produce · Infinite sacrifice triggers · Infinite untap of creatures · Infinite untap of creatures you control
Show steps
  1. Activate Carrion Feeder by sacrificing itself.
  2. When Carrion Feeder dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. When Carrion Feeder enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  4. Resolve the Carrion Feeder ability, doing nothing.
  5. Activate Cauldron of Souls by tapping it, giving the creature persist until end of turn.
  6. Activate Carrion Feeder by sacrificing itself.
  7. When Carrion Feeder dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  8. When Carrion Feeder enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  9. Resolve the Carrion Feeder ability, doing nothing.
  10. Repeat.
  11. If you control an additional nontoken, non-Human creature, you may instead sacrifice it to get infinite +1/+1 counters on Carrion Feeder.

Combo 6 with Vohar, Vodalian Desecrator + Haunted One + Deceiver Exarch

Results: Infinite card draw · Infinite draw triggers · Infinite looting · Near-infinite +1/+1 counters on a creature · Near-infinite death triggers · Near-infinite ETB · Near-infinite LTB · Near-infinite power for certain creatures until end of turn · Near-infinite sacrifice triggers
Show steps
  1. Activate Vohar's first ability by tapping it.
  2. Vohar triggers, giving creatures you control that share a creature type with it +2/+0 and undying until end of turn.
  3. Resolve the Vohar ability from step 1, causing you to loot.
  4. Activate Carrion Feeder by sacrificing Deceiver Exarch.
  5. When Deceiver Exarch dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. When Deceiver Exarch enters the battlefield, it triggers, untapping Cauldron of Souls.
  7. Resolve the Carrion Feeder ability from step 4, putting a +1/+1 counter on it.
  8. Activate Cauldron of Souls by tapping it, giving Deceiver Exarch persist until end of turn.
  9. Activate Carrion Feeder by sacrificing Deceiver Exarch.
  10. When Deceiver Exarch dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  11. When Deceiver Exarch enters the battlefield, it triggers, untapping Vohar.
  12. Resolve the Carrion Feeder ability from step 9, putting a +1/+1 counter on it.
  13. Repeat.

Combo 7 with Szarel, Genesis Shepherd + Clock of Omens

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on a creature
Show steps
  1. Activate Cauldron of Souls by tapping it, giving two nontoken artifact creatures persist until end of turn.
  2. Activate Clock of Omens by tapping the nontoken artifact creatures, untapping Cauldron of Souls.
  3. Activate Carrion Feeder by sacrificing one of the nontoken artifact creatures that doesn't have a -1/-1 counter on it.
  4. When the creature dies, its persist ability and Szarel triggers.
  5. Resolve the persist trigger, returning the creature from your graveyard to the battlefield.
  6. Resolve the Szarel trigger, putting a number of +1/+1 counters on the other artifact creature.
  7. Resolve the Carrion Feeder ability.
  8. Repeat from step 3 once, instead sacrificing the creature who had counters placed on it in step 6.
  9. Repeat from step 1.

Combo 8 with Dross Scorpion + Arsenal Thresher

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on a creature
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Arsenal Thresher persist until end of turn.
  2. Activate Carrion Feeder by sacrificing Arsenal Thresher.
  3. When Arsenal Thresher dies, its persist ability and Dross Scorpion trigger.
  4. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
  5. Resolve the Arsenal Thresher trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it, and then choosing to reveal at least one artifact card from your hand to remove the -1/-1 counter.
  6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  7. Repeat.

Combo 9 with Gerrard, Weatherlight Hero + Extruder

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Gerrard persist until end of turn.
  2. Activate Extruder by sacrificing Cauldron of Souls, putting a +1/+1 counter on Gerrard.
  3. Activate Carrion Feeder by sacrificing Gerrard.
  4. When Gerrard dies, it and its persist ability trigger.
  5. Resolve the Gerrard persist trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  6. Resolve the second Gerrard trigger, failing to exile it as it has left your graveyard, and returning Cauldron of Souls from your graveyard to the battlefield.
  7. Resolve the Carrion Feeder ability from step 3, putting a +1/+1 counter on it.
  8. Repeat.

Combo 10 with Derevi, Empyrial Tactician + Aerith Gainsborough

Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite +1/+1 counters on a creature · Infinite +1/+1 counters on legendary creatures you control
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Derevi and Aerith persist until end of turn.
  2. Activate Carrion Feeder by sacrificing Derevi.
  3. When Derevi dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  4. When Derevi enters the battlefield, it triggers, untapping Cauldron of Souls.
  5. Activate Carrion Feeder by sacrificing Aerith.
  6. When Aerith dies, it triggers twice.
  7. Resolve Aerith's persist trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  8. Resolve the second Aerith trigger, putting a +1/+1 counter on each legendary creature you control, thus removing the -1/-1 counters from Aerith and Derevi.
  9. Resolve the Carrion Feeder abilities from steps 2 and 5.
  10. Repeat.
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