Mirko, Obsessive Theorist + Coretapper + Magistrate's Scepter + Hex Parasite

Prerequisites

• Coretapper does not have summoning sickness.
• Mirko has at least 2 power.

Steps

1. 1Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
2. 2Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
3. 3Activate 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.
4. 4At the beginning of your end step, Mirko's last ability triggers, returning Coretapper from your graveyard to the battlefield with a finality counter on it.
5. 5Activate Hex Parasite by paying , removing the finality counter from Coretapper and giving Hex Parasite +1/+0 until end of turn.
6. 6Repeat each turn.

Effects

• Infinite turns
• Lock