Dockside Extortionist + Underworld Breach + Grinding Station + Viscera Seer
Dockside Extortionist
Underworld Breach
Grinding Station
Viscera Seer
Requires
Dockside Extortionist must be in hand, or in the graveyard.
Underworld Breach must be on the battlefield.
Grinding Station must be on the battlefield.
Viscera Seer must be on the battlefield.
You have at least three additional cards in your graveyard if Dockside Extortionist is in your graveyard.
Opponents control at least three artifacts and/or enchantments.
Mana needed: 
Steps
- Cast Dockside Extortionist either from your hand by paying or from your graveyard for its escape cost by paying and exiling three other cards from your graveyard.
- Dockside Extortionist enters the battlefield, creating at least three Treasure tokens.
- The Treasures enter the battlefield, triggering Grinding Station that many times, untapping Grinding Station.
- Activate Grinding Station by sacrificing a Treasure, causing you to mill three cards.
- Activate Viscera Seer by sacrificing Dockside Extortionist, causing you to scry 1.
- Activate two Treasures by tapping and sacrificing them, adding .
- Repeat.
- If opponents control four or more artifacts/enchantments, this combo will net near-infinite Treasure tokens and colored mana.
Results
Infinite self-mill. Near-infinite colored mana. Near-infinite death triggers. Near-infinite ETB. Near-infinite LTB. Near-infinite mill. Near-infinite sacrifice triggers. Near-infinite storm count. Near-infinite Treasure tokens.
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