Tendrils of Despair

anything leaves the battlefield — 1 card in the game can cause this (Tendrils of Despair is one).

1. Electro, Assaulting Battery — When Electro, Assaulting Battery leaves the battlefield thanks to Tendrils of Despair, it triggers
2. Chainer, Dementia Master — When Chainer, Dementia Master leaves the battlefield thanks to Tendrils of Despair, it exiles a Nightmare

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

When a creature is sacrificed thanks to Tendrils of Despair:

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 (Tendrils of Despair is one).

When a creature is sacrificed thanks to Tendrils of Despair:

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.

a card is discarded — 2,042 cards in the game can cause this (Tendrils of Despair is one).

When a permanent makes a player discard a card thanks to Tendrils of Despair:

1. Sangromancer — gains you 3 life
2. Lo and Li, Royal Advisors — puts a counter on an Advisor
3. Nath of the Gilt-Leaf — makes a token
4. Tourach, Dread Cantor — puts a +1/+1 counter on itself
5. Tinybones, Pocket Nuisance — deals 1 damage
6. Tinybones, Bauble Burglar — hits a graveyard
7. Fell Specter — makes each opponent lose 2 life
8. Spirit Cairn — makes a token
9. Confessor — gains you 1 life
10. Hostile Investigator — triggers

52 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 (Tendrils of Despair is one).

Tendrils of Despair puts cards into the graveyard that:

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

When a creature dies thanks to Tendrils of Despair:

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 dies — 2,830 cards in the game can cause this (Tendrils of Despair is one).

1. Pious Evangel // Wayward Disciple — When a creature dies thanks to Tendrils of Despair, Pious Evangel // Wayward Disciple makes each opponent lose 1 life
2. Daxos, Blessed by the Sun — When a creature dies thanks to Tendrils of Despair, Daxos, Blessed by the Sun gains you 1 life
3. Elas il-Kor, Sadistic Pilgrim — When a creature dies thanks to Tendrils of Despair, Elas il-Kor, Sadistic Pilgrim makes each opponent lose 1 life
4. Shriveling Rot — When a creature dies thanks to Tendrils of Despair, Shriveling Rot makes a player lose life equal to its toughness
5. Jeskai Sage — When Jeskai Sage dies thanks to Tendrils of Despair, it draws you 1 card
6. Cyclops Superconductor — When Cyclops Superconductor dies thanks to Tendrils of Despair, it triggers
7. Saffi Eriksdotter — When a creature dies thanks to Tendrils of Despair, Saffi Eriksdotter sacrifices itself
8. Treacherous Vampire — When Treacherous Vampire dies thanks to Tendrils of Despair, it makes you lose life

452 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 (Tendrils of Despair is one).

1. Ninja Teen — When a creature leaves the battlefield thanks to Tendrils of Despair, Ninja Teen makes each opponent lose 1 life

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

a permanent is put into a graveyard from the battlefield — 5,057 cards in the game can cause this (Tendrils of Despair is one).

1. Toluz, Clever Conductor — When Toluz, Clever Conductor dies thanks to Tendrils of Despair, it triggers
2. Gerrard, Weatherlight Hero — When Gerrard, Weatherlight Hero dies thanks to Tendrils of Despair, it exiles itself

15 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 (Tendrils of Despair is one).

1. Pitchstone Wall — Tendrils of Despair puts cards into the graveyard that Pitchstone Wall can bring back
2. Containment Construct — Tendrils of Despair puts cards into the graveyard that Containment Construct can bring back
3. Moonstone, Harsh Mistress — Tendrils of Despair puts cards into the graveyard that Moonstone, Harsh Mistress can bring back
4. Havi, the All-Father — Tendrils of Despair fills your graveyard toward the 4 or more cards Havi, the All-Father needs
5. Repentant Vampire — Tendrils of Despair fills your graveyard toward the 7 or more cards Repentant Vampire needs

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