Blight Keeper

a Bat in a graveyard — 4 cards in the game can cause this (Blight Keeper is one).

1. Mudflat Village — When Blight Keeper is in the graveyard, Mudflat Village can bring it back

a Bat attacks — 103 cards in the game can cause this (Blight Keeper is one).

1. Zoraline, Cosmos Caller — When Blight Keeper attacks, Zoraline, Cosmos Caller gains you 1 life

a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Blight Keeper is one).

When you sacrifice Blight Keeper:

1. Fumulus, the Infestation — makes a token
2. Bag of Devouring — exiles it

a creature is sacrificed — 1,741 cards in the game can cause this (Blight Keeper is one).

When you sacrifice Blight Keeper:

1. Ziatora, the Incinerator — deals that creature's power damage
2. Dina, Essence Brewer — draws you 1 card
3. Fleshtaker — gains you 1 life
4. Body Dropper — puts a +1/+1 counter on itself
5. Smothering Abomination — draws you 1 card
6. Kels, Fight Fixer — draws you 1 card
7. Caesar, Legion's Emperor — triggers
8. Grist, the Hunger Tide — kills a creature or planeswalker an opponent controls
9. Cabal Therapist — triggers
10. Rakdos, the Muscle — exiles a card from an opponent's library

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

life is gained — 2,076 cards in the game can cause this (Blight Keeper is one).

When Blight Keeper gains life:

1. Dina, Soul Steeper — makes each opponent lose 1 life
2. Marina Vendrell's Grimoire — draws you that many cards
3. South Wind Avatar — makes each opponent lose 1 life
4. Rodolf Duskbringer — grants indestructible
5. Fiendish Panda — puts a +1/+1 counter on itself
6. Veinwitch Coven — brings a card back
7. Cleric Class — puts a counter on a creature
8. Lich's Mastery — draws you that many cards
9. Wall of Limbs — puts a +1/+1 counter on itself
10. Ratchet, Field Medic // Ratchet, Rescue Racer — triggers

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

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

When Blight Keeper is in the graveyard:

1. Chainer, Dementia Master — can bring it back
2. Havengul Lich — can bring it back
3. Liliana the Repentant — can bring it back
4. Paleoloth — can bring it back
5. Chainer, Nightmare Adept — can bring it back
6. Banon, the Returners' Leader — can bring it back
7. Surgical Suite // Hospital Room — can bring it back
8. Sword of Light and Shadow — can bring it back
9. Necromantic Thirst — can bring it back
10. Krile Baldesion — can bring it 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 (Blight Keeper is one).

When Blight Keeper dies:

1. Zahur, Glory's Past — makes a token
2. Liesa, Forgotten Archangel — brings a card back
3. Avacyn, Angel of Horror — brings a card back
4. Yedora, Grave Gardener — brings a card back
5. Nim Deathmantle — brings a card back
6. Valkyrie's Call — brings a card back
7. Decaying Soil — brings a card back
8. High-Society Hunter — draws you 1 card
9. Liliana, Heretical Healer // Liliana, Defiant Necromancer — flickers itself
10. Body Launderer — draws and discards

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

a creature leaves the battlefield — 4,238 cards in the game can cause this (Blight Keeper is one).

1. Ninja Teen — When Blight Keeper leaves the battlefield, Ninja Teen makes each opponent lose 1 life

34 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 (Blight Keeper is one).

1. Havi, the All-Father — Blight Keeper fills your graveyard toward the 4 or more cards Havi, the All-Father needs

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

anything attacks — 17,934 cards in the game can cause this (Blight Keeper is one).

1. Shaun, Father of Synths — When Blight Keeper attacks, Shaun, Father of Synths makes a token

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

a creature attacks — 17,934 cards in the game can cause this (Blight Keeper is one).

1. Chorale of the Void — When Blight Keeper attacks, Chorale of the Void brings a card back

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