Sewerdreg

a nontoken Spirit is put into a graveyard from the battlefield — 54 cards in the game can cause this (Sewerdreg is one).

1. Millicent, Restless Revenant — When Sewerdreg is put into a graveyard from the battlefield, Millicent, Restless Revenant makes a token

a Spirit in a graveyard — 54 cards in the game can cause this (Sewerdreg is one).

When Sewerdreg is in the graveyard:

1. Iname, Life Aspect — can bring it back
2. Angel of Flight Alabaster — can bring it back

a nontoken Spirit enters the battlefield — 727 cards in the game can cause this (Sewerdreg is one).

1. Baboon Spirit — When Sewerdreg enters, Baboon Spirit makes a token

a Spirit enters the battlefield — 863 cards in the game can cause this (Sewerdreg is one).

When Sewerdreg enters:

1. Mausoleum Wanderer — gets +1/+1
2. Drogskol Cavalry — gains you 2 life
3. Vanguard of the Restless — returns itself from the graveyard
4. Nebelgast Herald — taps a creature an opponent controls

a Spirit creature it boosts — 889 cards in the game can cause this.

1. Long-Forgotten Gohei — Long-Forgotten Gohei gives Sewerdreg bigger stats

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

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

When you sacrifice Sewerdreg:

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 (Sewerdreg is one).

When you sacrifice Sewerdreg:

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 is exiled — 2,497 cards in the game can cause this (Sewerdreg is one).

1. The War Doctor — When a permanent is exiled thanks to Sewerdreg, The War Doctor puts a time counter on itself

1 other card cares 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 (Sewerdreg is one).

When Sewerdreg is in the graveyard:

1. Chainer, Dementia Master — can bring it back
2. Blastoneuron — can bring it back
3. Defiled Crypt // Cadaver Lab — can bring it back
4. Havengul Lich — can bring it back
5. Liliana the Repentant — can bring it back
6. Paleoloth — can bring it back
7. Chainer, Nightmare Adept — can bring it back
8. Banon, the Returners' Leader — can bring it back
9. Surgical Suite // Hospital Room — can bring it back
10. Sword of Light and Shadow — 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 (Sewerdreg is one).

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

1. Pious Evangel // Wayward Disciple — When Sewerdreg dies, Pious Evangel // Wayward Disciple makes each opponent lose 1 life
2. Daxos, Blessed by the Sun — When Sewerdreg dies, Daxos, Blessed by the Sun gains you 1 life
3. Elas il-Kor, Sadistic Pilgrim — When Sewerdreg dies, Elas il-Kor, Sadistic Pilgrim makes each opponent lose 1 life
4. Shriveling Rot — When Sewerdreg dies, Shriveling Rot makes a player lose life equal to its toughness
5. Meathook Massacre II — When Sewerdreg dies, Meathook Massacre II brings a card back
6. Saffi Eriksdotter — When Sewerdreg dies, Saffi Eriksdotter sacrifices itself

456 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 (Sewerdreg is one).

1. Ninja Teen — When Sewerdreg 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 (Sewerdreg is one).

1. Havi, the All-Father — Sewerdreg fills your graveyard toward the 4 or more cards Havi, the All-Father needs
2. Repentant Vampire — Sewerdreg fills your graveyard toward the 7 or more cards Repentant Vampire needs
3. Treacherous Vampire — Sewerdreg fills your graveyard toward the 7 or more cards Treacherous Vampire needs
4. Athreos, Shroud-Veiled — When Sewerdreg is in the graveyard, Athreos, Shroud-Veiled can bring it back

440 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 (Sewerdreg is one).

When Sewerdreg attacks:

1. Shaun, Father of Synths — makes a token
2. Grim Javelineer — gives +1/+0
3. Clavileño, First of the Blessed — turns something into a creature

148 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 (Sewerdreg is one).

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

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

a creature is cast — 18,010 cards in the game can cause this (Sewerdreg is one).

When Sewerdreg is cast:

1. God-Eternal Oketra — makes a token
2. Quirion Beastcaller — puts a +1/+1 counter on itself

89 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 (Sewerdreg is one).

When Sewerdreg enters:

1. Boss's Chauffeur — puts a +1/+1 counter on itself
2. Dinosaur Egg — puts a counter on itself

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