Stitcher's Supplier Combos
Underworld Breach + Culling the Weak + Stitcher's Supplier
Combo result
Infinite self-mill. Near-infinite black mana. Near-infinite ETB. Near-infinite LTB. Near-infinite death triggers. Near-infinite sacrifice triggers. Near-infinite storm count. Near-infinite magecraft triggers.
Prerequisites
Culling the Weak in your graveyard. All permanents on the battlefield. You have at least three additional cards in your graveyard. {B} available.