Mimic Vat + Coretapper + Magistrate's Scepter

Prerequisites

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Steps

1. 1Activate Mimic Vat by paying and tapping it, creating a token copy of Coretapper with haste that will be exiled at the beginning of the next end step.
2. 2Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
3. 3Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
4. 4Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
5. 5At the beginning of the end step, the delayed ability from Mimic Vat triggers, failing to exile anything.
6. 6Repeat each turn.

Effects

• Infinite turns
• Lock