Color Identity: U

Initial Card State
- Myr Retriever in your graveyard.
- All other permanents on the battlefield.
Steps
- Activate Phyrexian Altar by sacrificing Workshop Assistant, adding ({1} magic symbol)
. - Workshop Assistant dies, returning Myr Retriever from your graveyard to your hand.
- Cast Myr Retriever by paying ({1} magic symbol)
. - Sai triggers, creating a 1/1 Thopter artifact creature token.
- Activate Phyrexian Altar twice by sacrificing the Thopter and Myr Retriever, adding ({2} magic symbol)
. - Myr Retriever dies, returning Workshop Assistant from your graveyard to your hand.
- Cast Workshop Assistant by paying ({2} magic symbol)
. - Sai triggers, creating a 1/1 Thopter artifact creature token.
- Repeat.
- 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.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).