Morinfen

a Phyrexian is put into a graveyard from the battlefield — 34 cards in the game can cause this (Morinfen is one).

1. Gift of Compleation — When Morinfen is put into a graveyard from the battlefield, Gift of Compleation surveils

a Horror deals combat damage — 382 cards in the game can cause this (Morinfen is one).

1. Captain N'ghathrod — When Morinfen deals combat damage, Captain N'ghathrod mills a card

a Phyrexian attacks — 495 cards in the game can cause this (Morinfen is one).

1. Vulpine Harvester — When Morinfen attacks, Vulpine Harvester brings a card back

a nontoken Phyrexian enters the battlefield — 496 cards in the game can cause this (Morinfen is one).

1. Darksteel Splicer — When Morinfen enters, Darksteel Splicer makes a token

a Phyrexian enters the battlefield — 524 cards in the game can cause this (Morinfen is one).

1. Essence of Orthodoxy — When Morinfen enters, Essence of Orthodoxy puts a counter on a permanent

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

When you sacrifice Morinfen:

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 (Morinfen is one).

When you sacrifice Morinfen:

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 creature gets a counter — 2,691 cards in the game can cause this (Morinfen is one).

When Morinfen gets a counter:

1. Hollowmurk Siege — draws you 1 card
2. Danny Pink — draws you 1 card
3. Mikey & Leo, Chaos & Order — draws you 1 card
4. Rikku, Resourceful Guardian — triggers

39 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 (Morinfen is one).

When Morinfen 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. Sword of Light and Shadow — can bring it back
8. Necromantic Thirst — can bring it back
9. Krile Baldesion — can bring it back
10. Ruthless Technomancer — 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 (Morinfen is one).

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

1. Battle of Hoover Dam — When Morinfen dies, Battle of Hoover Dam puts 2 counters on a creature
2. Pious Evangel // Wayward Disciple — When Morinfen dies, Pious Evangel // Wayward Disciple makes each opponent lose 1 life
3. Daxos, Blessed by the Sun — When Morinfen dies, Daxos, Blessed by the Sun gains you 1 life
4. Elas il-Kor, Sadistic Pilgrim — When Morinfen dies, Elas il-Kor, Sadistic Pilgrim makes each opponent lose 1 life
5. Shriveling Rot — When Morinfen dies, Shriveling Rot makes a player lose life equal to its toughness
6. Bereaved Survivor // Dauntless Avenger — When Morinfen dies, Bereaved Survivor // Dauntless Avenger triggers

457 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 (Morinfen is one).

1. Ninja Teen — When Morinfen 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.

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

When Morinfen attacks:

1. Shaun, Father of Synths — makes a token
2. Surgical Suite // Hospital Room — puts a counter on a creature
3. Grim Javelineer — gives +1/+0
4. Clavileño, First of the Blessed — turns something into a creature

147 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 (Morinfen is one).

1. Chorale of the Void — When Morinfen 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 (Morinfen is one).

1. Quirion Beastcaller — When Morinfen is cast, Quirion Beastcaller puts a +1/+1 counter on itself

90 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 (Morinfen is one).

When Morinfen enters:

1. Scurry Oak — puts a counter on itself
2. Fathom Mage — puts a counter on itself
3. Boss's Chauffeur — puts a +1/+1 counter on itself
4. Dinosaur Egg — puts a counter on itself

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