Chthonian Nightmare

anything leaves the battlefield — 1 card in the game can cause this (Chthonian Nightmare is one).

1. Chainer, Dementia Master — When Chainer, Dementia Master leaves the battlefield thanks to Chthonian Nightmare, it exiles a Nightmare

a creature leaves a graveyard — 1,302 cards in the game can cause this (Chthonian Nightmare is one).

When a creature leaves a graveyard thanks to Chthonian Nightmare:

1. Grim Reaper's Scythe — makes a token
2. Syr Konrad, the Grim — deals 1 damage
3. Cyan, Vengeful Samurai — puts a +1/+1 counter on itself
4. Along the Crooked Way — puts a counter on a Goblin or Army
5. Skeleton Crew — makes a token
6. Desecrated Tomb — makes a token
7. Chalk Outline — makes a token
8. Insidious Roots — makes a token
9. Undead Hand Ninja — makes each opponent lose 1 life
10. Rot Farm Mortipede — gets +1/+0

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

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

When a creature is sacrificed thanks to Chthonian Nightmare:

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 (Chthonian Nightmare is one).

When a creature is sacrificed thanks to Chthonian Nightmare:

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.

anything leaves a graveyard — 2,503 cards in the game can cause this (Chthonian Nightmare is one).

When a creature leaves a graveyard thanks to Chthonian Nightmare:

1. Blastoneuron — makes each opponent lose 1 life
2. Defiled Crypt // Cadaver Lab — makes a token
3. Teval, the Balanced Scale — makes a token
4. Hologram Stalker — makes a token
5. Tormod, the Desecrator — makes a token
6. Quintorius, Field Historian — makes a token
7. Garrison Excavator — makes a token
8. Amzu, Swarm's Hunger — makes a token
9. Kirol, History Buff // Pack a Punch — becomes prepared
10. Teval's Judgment — triggers

13 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.

1. Necromancy — Chthonian Nightmare puts cards into the graveyard that Necromancy can bring back
2. Diabolic Servitude — Chthonian Nightmare puts cards into the graveyard that Diabolic Servitude can bring back
3. Havengul Lich — Chthonian Nightmare puts cards into the graveyard that Havengul Lich can bring back
4. Liliana the Repentant — Chthonian Nightmare puts cards into the graveyard that Liliana the Repentant can bring back
5. Paleoloth — Chthonian Nightmare puts cards into the graveyard that Paleoloth can bring back
6. Chainer, Nightmare Adept — Chthonian Nightmare puts cards into the graveyard that Chainer, Nightmare Adept can bring back
7. Banon, the Returners' Leader — Chthonian Nightmare puts cards into the graveyard that Banon, the Returners' Leader can bring back
8. Surgical Suite // Hospital Room — Chthonian Nightmare puts cards into the graveyard that Surgical Suite // Hospital Room can bring back
9. Sword of Light and Shadow — Chthonian Nightmare puts cards into the graveyard that Sword of Light and Shadow can bring back
10. Necromantic Thirst — Chthonian Nightmare puts cards into the graveyard that Necromantic Thirst can bring back
11. Shriveling Rot — Shriveling Rot puts cards into the graveyard that Chthonian Nightmare can bring back
12. Foot Chopper — Foot Chopper puts cards into the graveyard that Chthonian Nightmare can bring back
13. Blasting Station — Blasting Station puts cards into the graveyard that Chthonian Nightmare can bring back
14. Lethal Vapors — Lethal Vapors puts cards into the graveyard that Chthonian Nightmare can bring back
15. Grave Peril — Grave Peril puts cards into the graveyard that Chthonian Nightmare can bring back
16. Spreading Plague — Spreading Plague puts cards into the graveyard that Chthonian Nightmare can bring back
17. Saw — Saw puts cards into the graveyard that Chthonian Nightmare can bring back
18. Hot Soup — Hot Soup puts cards into the graveyard that Chthonian Nightmare can bring back
19. Cracked Skull — Cracked Skull puts cards into the graveyard that Chthonian Nightmare can bring back
20. Sporogenic Infection — Sporogenic Infection puts cards into the graveyard that Chthonian Nightmare can bring back

1,346 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 (Chthonian Nightmare is one).

When a creature dies thanks to Chthonian Nightmare:

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

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

put an enchantment onto the battlefield — 3,743 cards in the game can cause this.

1. Eldrazi Confluence — When Chthonian Nightmare enters thanks to Eldrazi Confluence, it puts a counter on a permanent you control

3,742 other cards cause it too. These are the ones with the most connections.

a nontoken creature leaves the battlefield — 4,133 cards in the game can cause this (Chthonian Nightmare is one).

1. Dual Nature — When a creature leaves the battlefield thanks to Chthonian Nightmare, Dual Nature exiles a creature

3 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 (Chthonian Nightmare is one).

1. Ninja Teen — When a creature leaves the battlefield thanks to Chthonian Nightmare, Ninja Teen makes each opponent lose 1 life

32 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 (Chthonian Nightmare is one).

1. Havi, the All-Father — Chthonian Nightmare 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.

a creature enters the battlefield — 19,800 cards in the game can cause this (Chthonian Nightmare is one).

1. Odunos River Trawler — When Odunos River Trawler enters thanks to Chthonian Nightmare, it brings a card back
2. Technomancer — When Technomancer enters thanks to Chthonian Nightmare, it mills a card
3. Sludge Titan — When Sludge Titan enters thanks to Chthonian Nightmare, it mills a card
4. Overseer of the Damned — When Overseer of the Damned enters thanks to Chthonian Nightmare, it kills a creature an opponent controls

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

anything enters the battlefield — 26,499 cards in the game can cause this (Chthonian Nightmare is one).

1. Malik, Grim Manipulator — When Malik, Grim Manipulator enters thanks to Chthonian Nightmare, it triggers
2. Legate Lanius, Caesar's Ace — When Legate Lanius, Caesar's Ace enters thanks to Chthonian Nightmare, it makes an opponent sacrifice a creature

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