Cauldron of Souls + Phyrexian Altar

Cauldron of Souls + Phyrexian Altar Combos

15 known combos featuring both cards in Commander

Infinite colored mana Infinite death triggers Infinite ETB Infinite LTB Infinite sacrifice triggers

Combo 1 with Mikaeus, the Unhallowed + Dross Scorpion

Also requires: Mikaeus, the Unhallowed Mikaeus, the Unhallowed Dross Scorpion Dross Scorpion
Results: Infinite colored mana · 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 Phyrexian Altar by sacrificing Dross Scorpion, adding one mana of any color.
  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 Phyrexian Altar by sacrificing Dross Scorpion, adding one mana of any color.
  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 Phyrexian Altar by sacrificing Dross Scorpion, adding one mana of any color.
  11. Dross Scorpion dies, triggering its ability and its persist ability.
  12. Repeat from step 4.
27 decks Colorless View on Commander Spellbook →

Combo 2 with Tatterkite + Dross Scorpion

Also requires: Tatterkite Tatterkite Dross Scorpion Dross Scorpion
Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Tatterkite persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Tatterkite, adding one mana of any color.
  3. Tatterkite dies, triggering its persist ability and Dross Scorpion.
  4. Resolve the Tatterkite trigger, returning it from your graveyard to the battlefield with no -1/-1 counters on it.
  5. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls.
  6. Repeat.
14 decks Colorless View on Commander Spellbook →

Combo 3 with Dross Scorpion + Mycosynth Lattice

Also requires: Dross Scorpion Dross Scorpion Mycosynth Lattice Mycosynth Lattice
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing the creature with bloodthirst, adding one mana of any color.
  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. Repeat.
4 decks Colorless View on Commander Spellbook →

Combo 4 with Dross Scorpion + Biotransference

Also requires: Dross Scorpion Dross Scorpion Biotransference Biotransference
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing the creature with bloodthirst, adding one mana of any color.
  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. Repeat.
3 decks Colorless View on Commander Spellbook →

Combo 5 with Dross Scorpion + Encroaching Mycosynth

Also requires: Dross Scorpion Dross Scorpion Encroaching Mycosynth Encroaching Mycosynth
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing the creature with bloodthirst, adding one mana of any color.
  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. Repeat.
2 decks Colorless View on Commander Spellbook →

Combo 6 with Corridor Monitor + Cathars' Crusade

Also requires: Corridor Monitor Corridor Monitor Cathars' Crusade Cathars' Crusade
Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite +1/+1 counters on creatures you control
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Corridor Monitor persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Corridor Monitor, adding one mana of any color.
  3. When Corridor Monitor dies, its persist ability triggers, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  4. When Corridor Monitor enters the battlefield, it and Cathars' Crusade trigger.
  5. Resolve the Corridor Monitor trigger, untapping Cauldron of Souls.
  6. Resolve the Cathars' Crusade trigger, putting a +1/+1 counter on each creature you control.
  7. Repeat.
2 decks Colorless View on Commander Spellbook →

Combo 7 with Gerrard, Weatherlight Hero + Extruder

Also requires: Gerrard, Weatherlight Hero Gerrard, Weatherlight Hero Extruder Extruder
Results: Infinite LTB · Infinite ETB · Infinite colored mana · 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 Phyrexian Altar by sacrificing Gerrard, adding one mana of any color.
  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. Repeat.
Colorless View on Commander Spellbook →

Combo 8 with Zealous Conscripts + Verdurous Gearhulk

Also requires: Zealous Conscripts Zealous Conscripts Verdurous Gearhulk Verdurous Gearhulk
Results: Infinite +1/+1 counters on most creatures you control · Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Verdurous Gearhulk and Zealous Conscripts persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Zealous Conscripts, adding one mana of any color.
  3. When Zealous Conscripts dies, its persist ability triggers, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  4. When Zealous Conscripts enters the battlefield, it triggers, untapping Cauldron of Souls.
  5. Activate Phyrexian Altar by sacrificing Verdurous Gearhulk, adding one mana of any color.
  6. When Verdurous Gearhulk dies, its persist ability triggers, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  7. When Verdurous Gearhulk enters the battlefield, it triggers, putting a +1/+1 counter on itself and Zealous Conscripts, and two +1/+1 counters on any other creature(s) you control.
  8. Repeat.
Colorless View on Commander Spellbook →

Combo 9 with Corridor Monitor + Ridgescale Tusker

Also requires: Corridor Monitor Corridor Monitor Ridgescale Tusker Ridgescale Tusker
Results: Infinite +1/+1 counters on most creatures you control · Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Ridgescale Tusker and Corridor Monitor persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Corridor Monitor, adding one mana of any color.
  3. Corridor Monitor dies, triggering its persist ability, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  4. Corridor Monitor enters the battlefield, untapping Cauldron of Souls.
  5. Activate Phyrexian Altar by sacrificing Ridgescale Tusker, adding one mana of any color.
  6. Ridgescale Tusker dies, triggering its persist ability, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  7. Ridgescale Tusker enters the battlefield, putting a +1/+1 counter on each creature you control.
  8. Repeat.
Colorless View on Commander Spellbook →

Combo 10 with Corridor Monitor + Verdurous Gearhulk

Also requires: Corridor Monitor Corridor Monitor Verdurous Gearhulk Verdurous Gearhulk
Results: Infinite +1/+1 counters on most creatures you control · Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Verdurous Gearhulk and Corridor Monitor persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Corridor Monitor, adding one mana of any color.
  3. Corridor Monitor dies, triggering its persist ability, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  4. Corridor Monitor enters the battlefield, untapping Cauldron of Souls.
  5. Activate Phyrexian Altar by sacrificing Verdurous Gearhulk, adding one mana of any color.
  6. Verdurous Gearhulk dies, triggering its persist ability, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  7. Verdurous Gearhulk enters the battlefield, putting a +1/+1 counter on itself and Corridor Monitor, and two +1/+1 counters on any other creature(s) you control.
  8. Repeat.
Colorless View on Commander Spellbook →

Combo 11 with Mikaeus, the Unhallowed + Intruder Alarm + Animate Artifact

Also requires: Mikaeus, the Unhallowed Mikaeus, the Unhallowed Intruder Alarm Intruder Alarm Animate Artifact Animate Artifact
Results: Infinite colored mana · 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 Phyrexian Altar by sacrificing the additional nontoken non-Human creature, adding one mana of any color.
  2. When the creature dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  4. Activate Cauldron of Souls by tapping it, giving the creature persist until end of turn.
  5. Activate Phyrexian Altar by sacrificing the creature, adding one mana of any color.
  6. When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  7. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  8. Repeat.
Colorless View on Commander Spellbook →

Combo 12 with Vohar, Vodalian Desecrator + Haunted One + Deceiver Exarch

Also requires: Vohar, Vodalian Desecrator Vohar, Vodalian Desecrator Haunted One Haunted One Deceiver Exarch Deceiver Exarch
Results: Infinite card draw · Infinite draw triggers · Infinite looting · Near-infinite colored mana · 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 Phyrexian Altar by sacrificing Deceiver Exarch, adding one mana of any color.
  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. Activate Cauldron of Souls by tapping it, giving Deceiver Exarch persist until end of turn.
  8. Activate Phyrexian Altar by sacrificing Deceiver Exarch, adding one mana of any color.
  9. When Deceiver Exarch dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  10. When Deceiver Exarch enters the battlefield, it triggers, untapping Vohar.
  11. Repeat.
Colorless View on Commander Spellbook →

Combo 13 with Szarel, Genesis Shepherd + Clock of Omens

Also requires: Szarel, Genesis Shepherd Szarel, Genesis Shepherd Clock of Omens Clock of Omens
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers
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 Phyrexian Altar 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. Repeat from step 3 once, instead sacrificing the creature who had counters placed on it in step 6.
  8. Repeat from step 1.
Colorless View on Commander Spellbook →

Combo 14 with Derevi, Empyrial Tactician + Aerith Gainsborough

Also requires: Derevi, Empyrial Tactician Derevi, Empyrial Tactician Aerith Gainsborough Aerith Gainsborough
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers · 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 Phyrexian Altar 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 Phyrexian Altar 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. Repeat.
Colorless View on Commander Spellbook →

Combo 15 with Dross Scorpion + Arsenal Thresher

Also requires: Dross Scorpion Dross Scorpion Arsenal Thresher Arsenal Thresher
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Arsenal Thresher persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Arsenal Thresher, adding one mana of any color.
  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. Repeat.
Colorless View on Commander Spellbook →
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