Barrin, Master Wizard, Myr Battlesphere, Ashnod's Altar, and Gandalf the White

Prerequisites

• Barrin, Master Wizard on the battlefield
• Myr Battlesphere in hand
• Ashnod's Altar on the battlefield
• Gandalf the White on the battlefield
• available

Steps

1. Cast Myr Battlesphere by paying
2. When Myr Battlesphere enters the battlefield, it triggers twice, creating eight 1/1 Myr artifact creature tokens
3. Activate Ashnod's Altar five times by sacrificing five Myrs, adding ten
4. Activate Barrin by paying and sacrificing a Myr, returning Myr Battlesphere to your hand from the battlefield
5. Repeat

Results

• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count