Polukranos, Unchained + Sage of Hours + The Ozolith + Mimic Vat

Prerequisites

• You have a way to kill Polukranos.

Steps

1. 1Kill Polukranos, triggering Mimic Vat's imprint ability and The Ozolith's first ability.
2. 2Resolve the Mimic Vat trigger, exiling Polukranos.
3. 3Resolve the The Ozolith trigger, putting six +1/+1 counters on it.
4. 4Activate Mimic Vat by paying and tapping it, creating a token copy of Polukranos with haste that enters with six +1/+1 counters on it.
5. 5At the beginning of combat on your turn, The Ozolith's second ability triggers, putting all counters on The Ozolith onto Sage of Hours.
6. 6Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
7. 7At the beginning of your end step, Mimic Vat triggers, exiling the Polukranos token.
8. 8The Polukranos token leaves the battlefield, triggering The Ozolith, putting six +1/+1 counters on The Ozolith.
9. 9Repeat from step 4 each turn.

Effects

• Infinite turns
• Lock