Ertha Jo, Frontier Mentor + Palladium Myr + Voltaic Key

RW identity

Commander legal

The 3 combo pieces

• Ertha Jo, Frontier Mentor
• Palladium Myr
• Voltaic Key

How to execute it

1. Activate Palladium Myr by tapping it, adding {C}{C}.
2. Activate Voltaic Key by paying {1} and tapping it, targeting Palladium Myr.
3. Ertha Jo's second ability triggers, copying Voltaic Key's ability, targeting Voltaic Key.
4. Resolve both Voltaic Key abilities, untapping it and Palladium Myr.
5. Repeat.

What the combo produces

• Infinite colorless mana
• Infinite mana artifact creatures you control can produce
• Infinite untap of artifact creatures you control