Urtet, Remnant of Memnarch + Magistrate's Scepter + Coretapper + Myr Galvanizer

Urtet, Remnant of Memnarch

Magistrate's Scepter

Coretapper

Myr Galvanizer

How it works

1. Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
2. Activate Myr Galvanizer by paying 1 and tapping it, untapping each other Myr you control.
3. Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
4. At the beginning of combat on your turn, Urtet triggers, untapping each Myr you control.
5. Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
6. Activate 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.
7. Repeat each turn.