Teshar, Ancestor's Apostle, Myr Retriever, Blasting Station, and Lotus Petal

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Myr Retriever on the battlefield
• Blasting Station on the battlefield
• Lotus Petal on the battlefield

Steps

1. Activate Lotus Petal by tapping and sacrificing it, adding one mana of any color
2. Activate Blasting Station by tapping it and sacrificing Myr Retriever
3. Myr Retriever triggers, returning Lotus Petal from your graveyard to your hand
4. Resolve the Blasting Station ability, dealing 1 damage to any target
5. Cast Lotus Petal by paying
6. Teshar triggers, returning Myr Retriever from your graveyard to the battlefield
7. Blasting Station triggers, untapping itself
8. Repeat

Results

• Infinite colored mana
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count