Underworld Breach + Stitcher's Supplier + Phyrexian Altar
Produces: Infinite self-mill, Near-infinite death triggers, Near-infinite creature ETB, Near-infinite creature LTB, Near-infinite creature sacrifice triggers, Near-infinite storm count
- Underworld Breach
- Stitcher's Supplier
- Phyrexian Altar
- Color identity
- BR
Steps
- 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.
How to execute this combo
The "Underworld Breach + Stitcher's Supplier + Phyrexian Altar" combo takes 5 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite self-mill, Near-infinite death triggers, Near-infinite creature ETB, Near-infinite creature LTB, Near-infinite creature sacrifice triggers, Near-infinite storm count.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.