How can you create a combo with Vohar, Vodalian Desecrator, Cauldron of Souls, Haunted One, Deceiver Exarch, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Vohar, Vodalian Desecrator, Cauldron of Souls, Haunted One, Deceiver Exarch, Ashnod's Altar

Color identity: UB
Mana cost: 
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 Ashnod's Altar by sacrificing Deceiver Exarch, adding {C}{C}.
  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 Ashnod's Altar by sacrificing Deceiver Exarch, adding {C}{C}.
  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.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Infinite looting
  - Near-infinite colorless mana
  - Near-infinite death triggers
  - Near-infinite enters the battlefield
  - Near-infinite leaves the battlefield
  - Near-infinitely powerful Phyrexians, Merfolks and Wizards you control until end of turn
  - Near-infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Vohar is your commander and does not have summoning sickness.
  - Deceiver Exarch does not have a +1/+1 counter on it.
[END OF COMBO PREREQUISITES]
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