Mirran Spy + Slobad, Iron Goblin + Yomiji, Who Bars the Way

URW identity

Commander legal

The 3 combo pieces

• Mirran Spy
• Slobad, Iron Goblin
• Yomiji, Who Bars the Way

What must be in place

Slobad does not have summoning sickness.
You control a nontoken legendary artifact that can be cast using only red mana.

How to execute it

1. Activate Slobad by tapping it and sacrificing a nontoken legendary artifact, adding an amount of {R} equal to the artifact's mana value that can only be spent to activate abilities of artifacts or cast artifacts spells.
2. The artifact leaves the battlefield, triggering Yomiji, returning the artifact from your graveyard to your hand.
3. Cast the artifact by paying its mana cost.
4. Mirran Spy triggers, untapping Slobad.
5. Repeat.

What the combo produces

• Infinite storm count