Altar of Dementia + Cauldron of Souls

Altar of Dementia + Cauldron of Souls Combos

14 known combos featuring both cards in Commander

Infinite death triggers Infinite ETB Infinite LTB Infinite mill 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 death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Steps
  1. Activate Cauldron of Souls by tapping it, giving Dross Scorpion persist until end of turn.
  2. Activate Altar of Dementia 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 Altar of Dementia 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 Altar of Dementia by sacrificing Dross Scorpion.
  11. Dross Scorpion dies, triggering its ability and its persist ability.
  12. Repeat from step 4.
  13. Resolve all Altar of Dementia abilities, causing any number of players to mill infinite cards.
14 decks Colorless View on Commander Spellbook →

Combo 2 with Dross Scorpion + Mycosynth Lattice

Also requires: Dross Scorpion Dross Scorpion Mycosynth Lattice Mycosynth Lattice
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Altar of Dementia 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 Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  7. Repeat.
8 decks Colorless View on Commander Spellbook →

Combo 3 with Dross Scorpion + Biotransference

Also requires: Dross Scorpion Dross Scorpion Biotransference Biotransference
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Altar of Dementia 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 Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  7. Repeat.
5 decks Colorless View on Commander Spellbook →

Combo 4 with Corridor Monitor + Cathars' Crusade

Also requires: Corridor Monitor Corridor Monitor Cathars' Crusade Cathars' Crusade
Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill · 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 Altar of Dementia by sacrificing Corridor Monitor.
  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. Resolve the Altar of Dementia ability from step 2, causing target player to mill cards equal to Corridor Monitor's power.
  8. Repeat.
2 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 sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn.
  2. Activate Altar of Dementia 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 Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  7. Repeat.
1 decks Colorless View on Commander Spellbook →

Combo 6 with Gerrard, Weatherlight Hero + Extruder

Also requires: Gerrard, Weatherlight Hero Gerrard, Weatherlight Hero Extruder Extruder
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill
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 Altar of Dementia 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 Altar of Dementia ability from step 3, causing target player to mill cards equal to Gerrard's power.
  8. Repeat.
Colorless View on Commander Spellbook →

Combo 7 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 death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Verdurous Gearhulk and Zealous Conscripts persist until end of turn.
  2. Activate Altar of Dementia by sacrificing Zealous Conscripts.
  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 Altar of Dementia by sacrificing Verdurous Gearhulk.
  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. Resolve both Altar of Dementia abilities, causing target player to mill cards equal to Verduous Gearhulk and Zealous Conscripts' power.
  9. Repeat.
Colorless View on Commander Spellbook →

Combo 8 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 death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Ridgescale Tusker and Corridor Monitor persist until end of turn.
  2. Activate Altar of Dementia by sacrificing Corridor Monitor.
  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 Altar of Dementia by sacrificing Ridgescale Tusker.
  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. Resolve both Altar of Dementia abilities, causing target player to mill cards equal to Corridor Monitor and Ridgescale Tusker's power.
  9. Repeat.
Colorless View on Commander Spellbook →

Combo 9 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 death triggers · Infinite ETB · Infinite LTB · Infinite mill · Infinite sacrifice triggers · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Verdurous Gearhulk and Corridor Monitor persist until end of turn.
  2. Activate Altar of Dementia by sacrificing Corridor Monitor.
  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 Altar of Dementia by sacrificing Verdurous Gearhulk.
  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. Resolve both Altar of Dementia abilities, causing target player to mill cards equal to Corridor Monitor and Verdurous Gearhulk's power.
  9. Repeat.
Colorless View on Commander Spellbook →

Combo 10 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 ETB · Infinite death triggers · Infinite LTB · Infinite mana creatures you control can produce · Infinite mill · Infinite sacrifice triggers · Infinite self-mill · Infinite untap of creatures · Infinite untap of creatures you control
Show steps
  1. Activate Altar of Dementia by sacrificing the additional nontoken non-Human creature.
  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. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  5. Activate Cauldron of Souls by tapping it, giving the creature persist until end of turn.
  6. Activate Altar of Dementia by sacrificing the creature.
  7. When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  8. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  9. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  10. Repeat.
Colorless View on Commander Spellbook →

Combo 11 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 death triggers · Near-infinite ETB · Near-infinite LTB · Near-infinite power for certain creatures until end of turn · Near-infinite mill · 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 Altar of Dementia 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 Altar of Dementia ability from step 4, causing target player to mill cards equal to Deceiver Exarch's power.
  8. Activate Cauldron of Souls by tapping it, giving Deceiver Exarch persist until end of turn.
  9. Activate Altar of Dementia 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 Altar of Dementia ability from step 9, causing target player to mill cards equal to Deceiver Exarch's power.
  13. Repeat.
Colorless View on Commander Spellbook →

Combo 12 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 sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill
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 Altar of Dementia 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 Altar of Dementia 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.
Colorless View on Commander Spellbook →

Combo 13 with Derevi, Empyrial Tactician + Aerith Gainsborough

Also requires: Derevi, Empyrial Tactician Derevi, Empyrial Tactician Aerith Gainsborough Aerith Gainsborough
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill · 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 Altar of Dementia 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 Altar of Dementia 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 Altar of Dementia abilities from steps 2 and 5.
  10. Repeat.
Colorless View on Commander Spellbook →

Combo 14 with Dross Scorpion + Arsenal Thresher

Also requires: Dross Scorpion Dross Scorpion Arsenal Thresher Arsenal Thresher
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite mill · Infinite self-mill
Show steps
  1. Activate Cauldron of Souls by tapping it, giving Arsenal Thresher persist until end of turn.
  2. Activate Altar of Dementia 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 Altar of Dementia ability, causing target player to mill cards equal to Arsenal Thresher's power.
  7. Repeat.
Colorless View on Commander Spellbook →
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