Sai, Master Thopterist, Myr Retriever, Workshop Assistant, Phyrexian Altar, and Foundry Inspector

Prerequisites

• Sai, Master Thopterist on the battlefield
• Myr Retriever in the graveyard
• Workshop Assistant on the battlefield
• Phyrexian Altar on the battlefield
• Foundry Inspector on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Workshop Assistant, adding
2. Workshop Assistant dies, returning Myr Retriever from your graveyard to your hand
3. Cast Myr Retriever by paying
4. Sai triggers, creating a 1/1 Thopter artifact creature token
5. Activate Phyrexian Altar twice by sacrificing the Thopter and Myr Retriever, adding
6. Myr Retriever dies, returning Workshop Assistant from your graveyard to your hand
7. Cast Workshop Assistant by paying
8. Sai triggers, creating a 1/1 Thopter artifact creature token
9. Repeat
10. Once you have infinite colored mana and creature tokens, you may use them to activate Sai's ability to draw infinite cards

Results

• Infinite card draw
• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite draw triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count