Coretapper + Magistrate's Scepter + Debtors' Knell + Lightning Greaves

Prerequisites

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Steps

1. 1At the beginning of your upkeep, Debtors' Knell triggers, returning Coretapper from your graveyard to the battlefield.
2. 2Activate Lightning Greaves' equip ability by paying , attaching it to Coretapper.
3. 3Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
4. 4Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
5. 5Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
6. 6Repeat each turn.

Effects

• Infinite turns
• Lock