The Abyss

a creature in a graveyard — 2,769 cards in the game can cause this (The Abyss is one).

The Abyss puts cards into the graveyard that:

1. Chainer, Dementia Master — can bring back
2. The Deck of Many Things — can bring back
3. Afterlife from the Loam — can bring back
4. Crypt Champion — can bring back
5. Victor, Valgavoth's Seneschal — can bring back
6. Push // Pull — can bring back
7. Vivien on the Hunt — can bring back
8. Virtus's Maneuver — can bring back
9. Dredger's Insight — can bring back
10. Bramble Familiar // Fetch Quest — can bring back

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

a nontoken creature dies — 2,769 cards in the game can cause this (The Abyss is one).

When a creature dies thanks to The Abyss:

1. Vraska, the Silencer — brings a card back
2. High-Society Hunter — draws you 1 card
3. Overseer of the Damned — makes a token
4. Shelob, Dread Weaver — hits a graveyard
5. Ghoulish Procession — makes a token
6. Ogre Slumlord — makes a token
7. Minotaur, Roxxon CEO — makes a token
8. Harvester of Souls — draws you 1 card
9. Magus of the Bridge — exiles itself
10. Koh, the Face Stealer — exiles it

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

a creature dies — 2,830 cards in the game can cause this (The Abyss is one).

When a creature dies thanks to The Abyss:

1. Journey to Eternity // Atzal, Cave of Eternity — brings a card back
2. Avatar Destiny — mills a card
3. Blood Spatter Analysis — mills a card
4. Shadows of the Past — scries
5. Shriveling Rot — makes a player lose life equal to its toughness
6. Meathook Massacre II — brings a card back
7. Ashnod's Intervention — brings a card back
8. Missy — brings a card back
9. Malakir Rebirth // Malakir Mire — brings a card back
10. Saffi Eriksdotter — sacrifices itself

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

a creature goes to a graveyard — 3,011 cards in the game can cause this (The Abyss is one).

1. Lorcan, Warlock Collector — When a creature hits the graveyard thanks to The Abyss, Lorcan, Warlock Collector brings a card back

13 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 (The Abyss is one).

When The Abyss is cast:

1. Krile Baldesion — brings a card back
2. Cyclops Superconductor — gets +1/+1
3. Jeskai Sage — gets +1/+1

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

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

When The Abyss enters:

1. Strength from the Fallen — gives +X/+X, where X is the number of creature cards in your graveyard
2. Unwilling Vessel — puts a possession counter on itself
3. Infernal Phantom — gets +2/+0

85 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 (The Abyss is one).

1. Athreos, Shroud-Veiled — The Abyss puts cards into the graveyard that Athreos, Shroud-Veiled can bring back

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