Polukranos, Unchained + Sage of Hours + Altar of Dementia + The Ozolith

Prerequisites

• You have at least six other cards in your graveyard.

Steps

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

Effects

• Lock
• Near-infinite turns