Underworld Breach

an enchantment is sacrificed — 588 cards in the game can cause this (Underworld Breach is one).

1. Narci, Fable Singer — When you sacrifice Underworld Breach, Narci, Fable Singer draws you 1 card

an enchantment in a graveyard — 983 cards in the game can cause this (Underworld Breach is one).

When Underworld Breach is in the graveyard:

1. The Emperor of Palamecia // The Lord Master of Hell — gets bigger
2. Lotus-Eye Mystics — can bring it back
3. Builder's Talent — can bring it back
4. Tasigur, the Golden Fang — can bring it back
5. Serpent of the Pass — gets bigger
6. Emeria Shepherd — can bring it back
7. Moment of Reckoning — can bring it back
8. Serra Paragon — can bring it back
9. Muldrotha, the Gravetide — can bring it back
10. Deadbridge Chant — can bring it back

104 other cards care about it too. These are the ones with the most connections.

an enchantment is put into a graveyard from the battlefield — 987 cards in the game can cause this (Underworld Breach is one).

When Underworld Breach is put into a graveyard from the battlefield:

1. Neva, Stalked by Nightmares — puts a +1/+1 counter on itself
2. Knight of Doves — makes a token
3. Warehouse Tabby — makes a token
4. Starfield Mystic — puts a +1/+1 counter on itself
5. Femeref Enchantress — draws you 1 card
6. Savior of the Sleeping — puts a +1/+1 counter on itself
7. Ashiok's Reaper — draws you 1 card
8. Wicked Visitor — makes each opponent lose 1 life
9. Martyr's Bond — makes an opponent sacrifice a permanent

1 other card cares about it too. These are the ones with the most connections.

anything is sacrificed — 3,450 cards in the game can cause this (Underworld Breach is one).

1. Gorbag of Minas Morgul — When you sacrifice Underworld Breach, Gorbag of Minas Morgul triggers

3 other cards care about it too. These are the ones with the most connections.

an enchantment is cast — 3,673 cards in the game can cause this (Underworld Breach is one).

When Underworld Breach is cast:

1. Death to Our Enemies — makes a token
2. Hallowed Haunting — makes a token
3. Daxos the Returned — puts a counter on a permanent
4. Tatsunari, Toad Rider — makes a token
5. Sythis, Harvest's Hand — gains you 1 life
6. Sigil of the Empty Throne — makes a token
7. Dawnhart Geist — gains you 2 life
8. Herald of the Pantheon — gains you 1 life
9. Kami of Transience — puts a +1/+1 counter on itself
10. Argothian Enchantress — draws you 1 card

255 other cards care about it too. These are the ones with the most connections.

a nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (Underworld Breach is one).

1. Historian's Boon — When Underworld Breach enters, Historian's Boon makes a token

an enchantment enters the battlefield — 3,743 cards in the game can cause this (Underworld Breach is one).

When Underworld Breach enters:

1. Calix, Guided by Fate — puts a counter on a creature
2. Elvish Archivist — draws you 1 card
3. Victor, Valgavoth's Seneschal — surveils
4. Strength from the Fallen — gives +X/+X, where X is the number of creature cards in your graveyard
5. Doomwake Giant — shrinks a creature by -1/-1
6. Cacophony Unleashed — turns something into a creature
7. Thassa's Devourer — mills a card
8. Archon of Sun's Grace — makes a token
9. Killian, Decisive Mentor — taps a creature
10. Thoughtrender Lamia — makes an opponent discard a card

65 other cards care about it too. These are the ones with the most connections.

a card in a graveyard — 7,589 cards in the game can cause this (Underworld Breach is one).

1. Gale, Waterdeep Prodigy — When Underworld Breach is in the graveyard, Gale, Waterdeep Prodigy can bring it back
2. Transplant Theorist — When Underworld Breach is in the graveyard, Transplant Theorist can bring it back
3. Heart-Shaped Herb — When Underworld Breach is in the graveyard, Heart-Shaped Herb can bring it back
4. Wayward Angel — Underworld Breach fills your graveyard toward the 7 or more cards Wayward Angel needs
5. Victimize — When Underworld Breach is in the graveyard, Victimize can bring it back
6. Bound // Determined — When Underworld Breach is in the graveyard, Bound // Determined can bring it back
7. Enlightened Confidant — When Underworld Breach is in the graveyard, Enlightened Confidant can bring it back
8. Tergrid, God of Fright // Tergrid's Lantern — When Underworld Breach is in the graveyard, Tergrid, God of Fright // Tergrid's Lantern can bring it back
9. Aerith, Last Ancient — When Underworld Breach is in the graveyard, Aerith, Last Ancient can bring it back
10. Sidequest: Card Collection // Magicked Card — Underworld Breach fills your graveyard toward the 8 or more cards Sidequest: Card Collection // Magicked Card needs

434 other cards care about it too. These are the ones with the most connections.

anything goes to a graveyard — 7,589 cards in the game can cause this (Underworld Breach is one).

When Underworld Breach hits the graveyard:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Planar Void — hits a graveyard
3. Measure of Wickedness — gives an opponent control of itself
4. Energy Field — sacrifices itself

7 other cards care about it too. These are the ones with the most connections.