Paroxysm

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

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

an Aura enters the battlefield — 1,257 cards in the game can cause this (Paroxysm is one).

When Paroxysm enters:

1. Tanglespan Lookout — draws you 1 card
2. Chishiro, the Shattered Blade — makes a token

4 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 (Paroxysm is one).

Paroxysm puts cards into the graveyard that:

1. Havengul Lich — can bring back
2. Liliana the Repentant — can bring back
3. Paleoloth — can bring back
4. Chainer, Nightmare Adept — can bring back
5. Banon, the Returners' Leader — can bring back
6. Surgical Suite // Hospital Room — can bring back
7. Sword of Light and Shadow — can bring back
8. Necromantic Thirst — can bring back
9. Krile Baldesion — can bring back
10. Extus, Oriq Overlord // Awaken the Blood Avatar — can bring 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 (Paroxysm is one).

When a creature dies thanks to Paroxysm:

1. Zahur, Glory's Past — makes a token
2. Vraska, the Silencer — brings a card back
3. Liesa, Forgotten Archangel — brings a card back
4. Avacyn, Angel of Horror — brings a card back
5. Yedora, Grave Gardener — brings a card back
6. Nim Deathmantle — brings a card back
7. Valkyrie's Call — brings a card back
8. Decaying Soil — brings a card back
9. High-Society Hunter — draws you 1 card
10. Overseer of the Damned — makes a token

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 (Paroxysm is one).

1. Abduction — When a creature dies thanks to Paroxysm, Abduction brings a card back
2. Fate Foretold — When a creature dies thanks to Paroxysm, Fate Foretold makes a player draw 1 card
3. Pious Evangel // Wayward Disciple — When a creature dies thanks to Paroxysm, Pious Evangel // Wayward Disciple makes each opponent lose 1 life
4. Daxos, Blessed by the Sun — When a creature dies thanks to Paroxysm, Daxos, Blessed by the Sun gains you 1 life
5. Elas il-Kor, Sadistic Pilgrim — When a creature dies thanks to Paroxysm, Elas il-Kor, Sadistic Pilgrim makes each opponent lose 1 life
6. Shriveling Rot — When a creature dies thanks to Paroxysm, Shriveling Rot makes a player lose life equal to its toughness
7. Jeskai Sage — When Jeskai Sage dies thanks to Paroxysm, it draws you 1 card
8. Cyclops Superconductor — When Cyclops Superconductor dies thanks to Paroxysm, it triggers
9. Saffi Eriksdotter — When a creature dies thanks to Paroxysm, Saffi Eriksdotter sacrifices itself
10. Treacherous Vampire — When Treacherous Vampire dies thanks to Paroxysm, it makes you lose life

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

a creature goes to a graveyard — 3,011 cards in the game can cause this (Paroxysm is one).

When a creature hits the graveyard thanks to Paroxysm:

1. Lorcan, Warlock Collector — brings a card back
2. Robot Domination — draws you 1 card
3. Lazav, Dimir Mastermind — copies a permanent
4. Profane Memento — gains you 1 life
5. Dennick, Pious Apprentice // Dennick, Pious Apparition — triggers
6. Soulcipher Board // Cipherbound Spirit — triggers

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

an enchantment is cast — 3,673 cards in the game can cause this (Paroxysm is one).

When Paroxysm is cast:

1. Hallowed Haunting — makes a token
2. Daxos the Returned — puts a counter on a permanent
3. Tatsunari, Toad Rider — makes a token
4. Sythis, Harvest's Hand — gains you 1 life
5. Sigil of the Empty Throne — makes a token
6. Dawnhart Geist — gains you 2 life
7. Herald of the Pantheon — gains you 1 life
8. Kami of Transience — puts a +1/+1 counter on itself
9. Argothian Enchantress — draws you 1 card
10. Mesa Enchantress — draws you 1 card

255 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 (Paroxysm is one).

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

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

a permanent is put into a graveyard from the battlefield — 5,057 cards in the game can cause this (Paroxysm is one).

1. Gerrard, Weatherlight Hero — When Gerrard, Weatherlight Hero dies thanks to Paroxysm, it exiles itself

14 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 (Paroxysm is one).

1. Havi, the All-Father — Paroxysm fills your graveyard toward the 4 or more cards Havi, the All-Father needs
2. Repentant Vampire — Paroxysm fills your graveyard toward the 7 or more cards Repentant Vampire needs
3. Athreos, Shroud-Veiled — Paroxysm puts cards into the graveyard that Athreos, Shroud-Veiled can bring back
4. Locked in the Cemetery — Paroxysm fills your graveyard toward the 5 or more cards Locked in the Cemetery needs

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