Swarm Intelligence

a spell is copied — 122 cards in the game can cause this (Swarm Intelligence is one).

When Swarm Intelligence is copied:

1. Parnesse, the Subtle Brush — copies a spell
2. The Twelfth Doctor — puts a +1/+1 counter on itself
3. Curse of Shaken Faith — deals 2 damage

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

When Swarm Intelligence 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 (Swarm Intelligence is one).

1. Historian's Boon — When Swarm Intelligence enters, Historian's Boon makes a token

cast a sorcery — 3,720 cards in the game can cause this.

1. Mission Briefing — When Mission Briefing is cast, Swarm Intelligence copies a spell
2. Sorcerous Squall — When Sorcerous Squall is cast, Swarm Intelligence copies a spell
3. Spectral Arcanist — When an instant is cast thanks to Spectral Arcanist, Swarm Intelligence copies a spell
4. Jace, Vryn's Prodigy // Jace, Telepath Unbound — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Swarm Intelligence copies a spell
5. Diviner of Mist — When an instant is cast thanks to Diviner of Mist, Swarm Intelligence copies a spell
6. Jace's Mindseeker — When an instant is cast thanks to Jace's Mindseeker, Swarm Intelligence copies a spell
7. Helmut Zemo, Mastermind — When an instant is cast thanks to Helmut Zemo, Mastermind, Swarm Intelligence copies a spell
8. Quistis Trepe — When an instant is cast thanks to Quistis Trepe, Swarm Intelligence copies a spell
9. Daring Waverider — When an instant is cast thanks to Daring Waverider, Swarm Intelligence copies a spell
10. Demilich — When an instant is cast thanks to Demilich, Swarm Intelligence copies a spell

3,710 other cards cause it too. These are the ones with the most connections.

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

When Swarm Intelligence 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

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

cast an instant — 3,931 cards in the game can cause this.

1. Rite of Undoing — When Rite of Undoing is cast, Swarm Intelligence copies a spell
2. Logic Knot — When Logic Knot is cast, Swarm Intelligence copies a spell
3. Dig Through Time — When Dig Through Time is cast, Swarm Intelligence copies a spell
4. Complete the Circuit — When Complete the Circuit is cast, Swarm Intelligence copies a spell
5. Stoic Rebuttal — When Stoic Rebuttal is cast, Swarm Intelligence copies a spell
6. Elite Arcanist — When an instant is cast thanks to Elite Arcanist, Swarm Intelligence copies a spell
7. Winds of Rebuke — When Winds of Rebuke is cast, Swarm Intelligence copies a spell
8. Three Wishes — When Three Wishes is cast, Swarm Intelligence copies a spell
9. Twist Reality — When Twist Reality is cast, Swarm Intelligence copies a spell
10. Gifts Ungiven — When Gifts Ungiven is cast, Swarm Intelligence copies a spell

3,921 other cards cause it too. These are the ones with the most connections.

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

1. Nature's Wrath — When Swarm Intelligence enters, Nature's Wrath makes a player sacrifice an Island or permanent

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