Grim Harvest + Coretapper + Magistrate's Scepter

Prerequisites

• Coretapper does not have summoning sickness.

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.
3. 3Grim Harvest's Recover ability triggers, causing you to pay to return Grim Harvest from your graveyard to your hand.
4. 4Resolve Coretappers ability, 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, taking an extra turn after this one.
6. 6Cast Grim Harvest by paying , returning Coretapper from your graveyard to your hand.
7. 7Cast Coretapper by paying .
8. 8Repeat each turn.

Effects

• Infinite turns
• Lock