Fevered Convulsions

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

When a creature gets a counter thanks to Fevered Convulsions:

1. Hollowmurk Siege — draws you 1 card
2. Wickersmith's Tools — puts a charge counter on itself
3. Hapatra, Vizier of Poisons — makes a token
4. Flourishing Defenses — makes a token
5. Nest of Scarabs — makes that many tokens
6. Obelisk Spider — makes each opponent lose 1 life
7. Auntie Ool, Cursewretch — draws you 1 card
8. Generous Patron — draws you 1 card
9. Danny Pink — draws you 1 card
10. Bold Plagiarist — puts counters on a permanent

31 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 (Fevered Convulsions is one).

When Fevered Convulsions 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 nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (Fevered Convulsions is one).

1. Historian's Boon — When Fevered Convulsions enters, Historian's Boon makes a token

an enchantment enters the battlefield — 3,743 cards in the game can cause this (Fevered Convulsions is one).

When Fevered Convulsions enters:

1. Calix, Guided by Fate — puts a counter on a creature
2. Elvish Archivist — draws you 1 card
3. Victor, Valgavoth's Seneschal — surveils
4. Strength from the Fallen — gives +X/+X, where X is the number of creature cards in your graveyard
5. Doomwake Giant — shrinks a creature by -1/-1
6. Cacophony Unleashed — turns something into a creature
7. Ghostly Dancers — makes a token
8. Thassa's Devourer — mills a card
9. Killian, Decisive Mentor — taps a creature
10. Thoughtrender Lamia — makes an opponent discard a card

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

anything gets a counter — 4,415 cards in the game can cause this (Fevered Convulsions is one).

1. All Will Be One — When a creature gets a counter thanks to Fevered Convulsions, All Will Be One deals that much damage

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

anything enters the battlefield — 26,499 cards in the game can cause this (Fevered Convulsions is one).

1. Nature's Wrath — When Fevered Convulsions enters, Nature's Wrath makes a player sacrifice a Swamp or permanent

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