How can you create a combo with Polukranos, Unchained, Sage of Hours, The Ozolith, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Polukranos, Unchained, Sage of Hours, The Ozolith, Altar of Dementia

Color identity: BGU
Mana cost: {4}{B}{G} each other turn
Steps:
  1. Cast Polukranos Unchained from your graveyard for its escape cost by paying {4}{B}{G} and exiling six other cards from your graveyard, causing it to enter the battlefield with twelve +1/+1 counters on it.
  2. Activate Altar of Dementia by sacrificing Polukranos Unchained.
  3. When Polukranos Unchained dies, The Ozolith's first ability triggers, putting twelve +1/+1 counters on it.
  4. Resolve the Altar of Dementia ability, causing you to mill cards equal to Polukranos Unchained's power.
  5. At the beginning of your combat phase, The Ozolith's second ability triggers, moving the +1/+1 counters from it onto Sage of Hours.
  6. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least two extra turns after this one.
  7. Repeat during your second extra turn.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Polukranos, Unchained must be in the graveyard
  - Sage of Hours must be on the battlefield
  - The Ozolith must be on the battlefield
  - Altar of Dementia must be on the battlefield
  - You have at least six other cards in your graveyard.
[END OF COMBO PREREQUISITES]
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