Atraxa, Praetors' Voice + Magistrate's Scepter + Contagion Engine

Prerequisites

• Magistrate's Scepter has at least one charge counter on it.

Steps

1. 1Activate Contagion Engine by paying and tapping it, putting two charge counters on Magistrate's Scepter.
2. 2At the beginning of your end step, Atraxa triggers, putting a charge counter 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. 4Repeat each turn.

Effects

• Infinite turns
• Lock