Witness of Tomorrows

a Sphinx attacks — 144 cards in the game can cause this (Witness of Tomorrows is one).

1. The Ur-Sphinx — When Witness of Tomorrows attacks, The Ur-Sphinx mills a card

a Sphinx enters the battlefield — 149 cards in the game can cause this (Witness of Tomorrows is one).

1. Unesh, Criosphinx Sovereign — When Witness of Tomorrows enters, Unesh, Criosphinx Sovereign triggers

you scry — 420 cards in the game can cause this (Witness of Tomorrows is one).

When Witness of Tomorrows scries:

1. Prudent Fateseer // Peer Review — gives +1/+0
2. Diviner of Victory // Unwind History — gets +1/+1
3. Saheeli, Consul of Oversight — makes a token
4. Celeborn the Wise — makes your creatures bigger
5. Proft, Consulting Detective — puts a +1/+1 counter on itself
6. Matoya, Archon Elder — draws you 1 card
7. Denzilore Fatehold — puts a counter on a creature
8. Elminster — costs less
9. Elrond, Master of Healing — puts a counter on a creature
10. Galadriel of Lothlórien — puts a land onto the battlefield

10 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 (Witness of Tomorrows is one).

When Witness of Tomorrows 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 (Witness of Tomorrows is one).

1. Historian's Boon — When Witness of Tomorrows enters, Historian's Boon makes a token

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

When Witness of Tomorrows 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

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

anything attacks — 17,934 cards in the game can cause this (Witness of Tomorrows is one).

When Witness of Tomorrows attacks:

1. Within Range — makes each opponent lose life
2. Sparring Regimen — puts a counter on a creature
3. Far Fortune, End Boss — deals 1 damage
4. Temmet, Naktamun's Will — draws you 1 card
5. Campsite Cuisine — sacrifices a Food
6. Obsessive Pursuit — makes you lose life
7. Invisible Woman — triggers
8. Caesar, Legion's Emperor — sacrifices a creature
9. Guide of Souls — triggers
10. Gossip's Talent — triggers

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

a creature attacks — 17,934 cards in the game can cause this (Witness of Tomorrows is one).

When Witness of Tomorrows attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Saw — sacrifices a creature

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

a creature blocks — 17,934 cards in the game can cause this (Witness of Tomorrows is one).

1. Tide of War — When Witness of Tomorrows blocks, Tide of War sacrifices a creature

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

a creature is cast — 18,010 cards in the game can cause this (Witness of Tomorrows is one).

When Witness of Tomorrows is cast:

1. Primeval Bounty — makes a token
2. Communal Brewing — it arrives with counters thanks to Communal Brewing

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

a creature enters the battlefield — 19,800 cards in the game can cause this (Witness of Tomorrows is one).

When Witness of Tomorrows enters:

1. Pollywog Prodigy — puts a counter on itself
2. Airbender Ascension — puts a quest counter on itself
3. Slash, Reptile Rampager — deals 2 damage
4. Ray Fillet, Wave Warrior — puts a counter on itself
5. The Neutrinos — gets +1/+0
6. Wingnut, Bat on the Belfry — grants flying, haste and menace
7. Aetherstorm Roc — puts a counter on a permanent you control
8. Raphael, Most Attitude — exiles a card from your library

327 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 (Witness of Tomorrows is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Witness of Tomorrows enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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