Order of Whiteclay, Coretapper, and Magistrate's Scepter

Prerequisites

• Order of Whiteclay on the battlefield
• Coretapper on the battlefield
• Magistrate's Scepter on the battlefield
• Coretapper and Order of Whiteclay do not have summoning sickness
• Opponents cannot block and kill Order of Whiteclay
• each turn available

Steps

1. Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter
2. Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter
3. Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one
4. Declare Order of Whiteclay as an attacker
5. Activate Order of Whiteclay by paying and untapping it, return Coretapper from your graveyard to the battlefield
6. Repeat each turn

Results

• Infinite turns