Glaring Aegis

a creature becomes tapped — 565 cards in the game can cause this (Glaring Aegis is one).

When a creature becomes tapped thanks to Glaring Aegis:

1. Stinging Licid — deals 2 damage
2. Gideon's Avenger — puts a +1/+1 counter on itself
3. Lust for War — deals 3 damage
4. Insolence — deals 2 damage
5. Seizures — deals 3 damage
6. Betrayal — draws you 1 card
7. Spirit Shackle — puts a counter on a permanent
8. Palliation Accord — puts a palliation counter on itself
9. Cryoshatter — kills a creature
10. Don't Move — kills a creature

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

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

When Glaring Aegis enters:

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

1 other card cares about it too. These are the ones with the most connections.

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

When Glaring Aegis is cast:

1. Master Pakku — gets +1/+1
2. Hallowed Haunting — makes a token
3. Daxos the Returned — puts a counter on a permanent
4. Tatsunari, Toad Rider — makes a token
5. Sythis, Harvest's Hand — gains you 1 life
6. Sigil of the Empty Throne — makes a token
7. Dawnhart Geist — gains you 2 life
8. Herald of the Pantheon — gains you 1 life
9. Kami of Transience — puts a +1/+1 counter on itself
10. Argothian 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 (Glaring Aegis is one).

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

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

When Glaring Aegis 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

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