Baral's Expertise, and Naru Meha, Master Wizard

Prerequisites

• Baral's Expertise in hand
• Naru Meha, Master Wizard in hand or in the command zone
• plus enough mana to pay for commander tax, if applicable available

Steps

1. Cast Baral's Expertise by paying
2. Holding priority, cast Naru Meha either from your hand or from the command zone by paying and commander tax, if applicable
3. Naru Meha enters the battlefield, creating a copy of Baral's Expertise targeting Naru Meha
4. Resolve the copy of Baral's Expertise, returning Naru Meha from the battlefield to your hand, and casting Naru Meha from your hand without paying its mana cost
5. Repeat from step 3

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite storm count
• Return any number of artifacts and/or creatures to their owners' hands