Opalescence

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

When Opalescence 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 (Opalescence is one).

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

an enchantment it applies animate to — 3,713 cards in the game can cause this (Opalescence is one).

1. Primeval Bounty — Opalescence gives Primeval Bounty life as a creature
2. Era of Innovation — Opalescence gives Era of Innovation life as a creature
3. Nature's Wrath — Opalescence gives Nature's Wrath life as a creature
4. Search for Dagger — Opalescence gives Search for Dagger life as a creature
5. Confusion in the Ranks — Opalescence gives Confusion in the Ranks life as a creature
6. Bloodbond March — Opalescence gives Bloodbond March life as a creature
7. Candlekeep Sage — Opalescence gives Candlekeep Sage life as a creature
8. Daxos, Blessed by the Sun — Opalescence gives Daxos, Blessed by the Sun life as a creature
9. Dual Nature — Opalescence gives Dual Nature life as a creature
10. Storm the Vault // Vault of Catlacan — Opalescence gives Storm the Vault // Vault of Catlacan life as a creature

3,702 other cards care about it too. These are the ones with the most connections.

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

When Opalescence 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

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