Phantasmal Mount

an Illusion is put into a graveyard from the battlefield — 24 cards in the game can cause this (Phantasmal Mount is one).

1. Minn, Wily Illusionist — When Phantasmal Mount is put into a graveyard from the battlefield, Minn, Wily Illusionist puts a creature onto the battlefield

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

When you sacrifice Phantasmal Mount:

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 (Phantasmal Mount is one).

When you sacrifice Phantasmal Mount:

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 in a graveyard — 2,769 cards in the game can cause this (Phantasmal Mount is one).

When Phantasmal Mount 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 (Phantasmal Mount is one).

When Phantasmal Mount 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 (Phantasmal Mount is one).

When Phantasmal Mount dies:

1. Pious Evangel // Wayward Disciple — makes each opponent lose 1 life
2. Daxos, Blessed by the Sun — gains you 1 life
3. Elas il-Kor, Sadistic Pilgrim — makes each opponent lose 1 life
4. Shriveling Rot — makes a player lose life equal to its toughness
5. Meathook Massacre II — brings a card back
6. Ashnod's Intervention — brings a card back
7. Missy — brings a card back
8. Saffi Eriksdotter — sacrifices itself
9. Angelic Renewal — sacrifices itself

453 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.

1. Ninja Teen — When Phantasmal Mount leaves the battlefield, Ninja Teen makes each opponent lose 1 life
2. Gossip's Talent — When Phantasmal Mount leaves the battlefield thanks to Gossip's Talent, it triggers
3. Portcullis — When Phantasmal Mount leaves the battlefield thanks to Portcullis, it triggers
4. Decoction Module — When Phantasmal Mount leaves the battlefield thanks to Decoction Module, it triggers
5. Grazilaxx, Illithid Scholar — When Phantasmal Mount leaves the battlefield thanks to Grazilaxx, Illithid Scholar, it triggers
6. Alora, Merry Thief — When Phantasmal Mount leaves the battlefield thanks to Alora, Merry Thief, it triggers
7. Long River Lurker — When Phantasmal Mount leaves the battlefield thanks to Long River Lurker, it triggers
8. Mirror Mockery — Mirror Mockery's copy of Phantasmal Mount is exiled at end of turn, and the copy's own leave ability triggers
9. Sword of Hearth and Home — When Phantasmal Mount leaves the battlefield thanks to Sword of Hearth and Home, it triggers
10. Contempt — When Phantasmal Mount leaves the battlefield thanks to Contempt, it triggers
11. Jin-Gitaxias // The Great Synthesis — When Phantasmal Mount leaves the battlefield thanks to Jin-Gitaxias // The Great Synthesis, it triggers

141 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 (Phantasmal Mount is one).

1. Havi, the All-Father — Phantasmal Mount fills your graveyard toward the 4 or more cards Havi, the All-Father needs
2. Repentant Vampire — Phantasmal Mount fills your graveyard toward the 7 or more cards Repentant Vampire needs
3. Treacherous Vampire — Phantasmal Mount fills your graveyard toward the 7 or more cards Treacherous Vampire needs
4. Athreos, Shroud-Veiled — When Phantasmal Mount 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 (Phantasmal Mount is one).

When Phantasmal Mount 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

146 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 (Phantasmal Mount is one).

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

1. Quirion Beastcaller — When Phantasmal Mount 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 (Phantasmal Mount is one).

When Phantasmal Mount enters:

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

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