Cast Culling the Weak for its escape cost by paying {B}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
Stitcher's Supplier dies, causing you to mill three cards.
Resolve Culling the Weak, adding {B}{B}{B}{B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
Stitcher's Supplier enters the battlefield, causing you to mill three cards.
Repeat.

Infinite self-mill

Underworld Breach

Culling the Weak

Stitcher's Supplier

Activate Phyrexian Altar by sacrificing Stitcher's Supplier, adding {B}.
Stitcher's Supplier dies, causing you to mill three cards.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
Stitcher's Supplier enters the battlefield, causing you to mill three cards.
Repeat.

Near-infinite death triggers

Near-infinite creature ETB

Near-infinite creature LTB

Near-infinite creature sacrifice triggers

Near-infinite storm count

Phyrexian Altar

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Energy Refractor by paying {2}, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Infernal Plunge

Energy Refractor

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Gemstone Array's first ability by paying {2}, putting a charge counter on it.
Activate Gemstone Array's second ability by removing a charge counter from it, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Gemstone Array

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Urn of Godfire's first ability by paying {2}, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Urn of Godfire

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Stonework Packbeast by paying {2}, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Stonework Packbeast

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Signpost Scarecrow by paying {2}, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Signpost Scarecrow

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Crossroads Candleguide by paying {2}, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Crossroads Candleguide

Cast Infernal Plunge for its escape cost by paying {R}, exling three other cards from your graveyard, and sacrificing Stiticher's Supplier.
When Stitcher's Supplier dies, it triggers, causing you to mill three cards.
Resolve Infernal Plunge, adding {R}{R}{R}.
Activate Prismite by paying {2}, adding {B}.
Cast Stitcher's Supplier for its escape cost by paying {B} and exling three other cards from your graveyard.
When Stitcher's Supplier enters the battlefield, it triggers, causing you to mill three cards.
Repeat.

Combos with "Stitcher's Supplier"