Blood Speaker

put a Demon onto the battlefield — 284 cards in the game can cause this.

1. Madame Null, Power Broker — When Madame Null, Power Broker enters, Blood Speaker returns itself from the graveyard
2. Defiling Daemogoth — When Defiling Daemogoth enters, Blood Speaker returns itself from the graveyard
3. Crabomination — When Crabomination enters, Blood Speaker returns itself from the graveyard
4. Valgavoth, Terror Eater — When Valgavoth, Terror Eater enters, Blood Speaker returns itself from the graveyard
5. Necropolis Fiend — When Necropolis Fiend enters, Blood Speaker returns itself from the graveyard
6. Soulflayer — When Soulflayer enters, Blood Speaker returns itself from the graveyard
7. Tombstalker — When Tombstalker enters, Blood Speaker returns itself from the graveyard
8. Ravenous Demon // Archdemon of Greed — When Ravenous Demon // Archdemon of Greed enters, Blood Speaker returns itself from the graveyard
9. Yawgmoth Demon — When Yawgmoth Demon enters, Blood Speaker returns itself from the graveyard
10. Herald of Anguish — When Herald of Anguish enters, Blood Speaker returns itself from the graveyard

274 other cards cause it too. These are the ones with the most connections.

a Shaman creature enters the battlefield — 539 cards in the game can cause this (Blood Speaker is one).

1. Thornbite Staff — When Blood Speaker enters, Thornbite Staff triggers

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

When Blood Speaker leaves a graveyard:

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. Erebos's Titan — triggers

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 (Blood Speaker is one).

When you sacrifice Blood Speaker:

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 (Blood Speaker is one).

When you sacrifice Blood Speaker:

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 (Blood Speaker is one).

When Blood Speaker leaves a graveyard:

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 (Blood Speaker is one).

When Blood Speaker 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 (Blood Speaker is one).

When Blood Speaker 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 dies — 2,830 cards in the game can cause this (Blood Speaker is one).

When Blood Speaker dies:

1. Ob Nixilis, Unshackled — puts a +1/+1 counter on itself
2. Pious Evangel // Wayward Disciple — makes each opponent lose 1 life
3. Daxos, Blessed by the Sun — gains you 1 life

459 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 (Blood Speaker is one).

1. Ninja Teen — When Blood Speaker 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 (Blood Speaker is one).

1. Havi, the All-Father — Blood Speaker 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 (Blood Speaker is one).

1. Shaun, Father of Synths — When Blood Speaker attacks, Shaun, Father of Synths makes a token

149 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 (Blood Speaker is one).

1. Chorale of the Void — When Blood Speaker attacks, Chorale of the Void brings a card back

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