Jace, Vryn's Prodigy // Jace, Telepath Unbound

an instant leaves a graveyard — 83 cards in Jace's colors can cause this (Jace is one).

1. Murktide Regent — When an instant leaves a graveyard thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Murktide Regent puts a +1/+1 counter on itself

a planeswalker it grants abilities to — 45 cards in Jace's colors can cause this.

1. Ichormoon Gauntlet — Ichormoon Gauntlet gives Jace, Vryn's Prodigy // Jace, Telepath Unbound an extra ability
2. Way of the Cryomancer — Way of the Cryomancer gives Jace, Vryn's Prodigy // Jace, Telepath Unbound an extra ability

43 other cards cause it too. These are the ones with the most connections.

a Wizard creature enters the battlefield — 566 cards in Jace's colors can cause this (Jace is one).

1. Diviner's Wand — When Jace, Vryn's Prodigy // Jace, Telepath Unbound enters, Diviner's Wand triggers

a card is discarded — 493 cards in Jace's colors can cause this (Jace is one).

When Jace, Vryn's Prodigy // Jace, Telepath Unbound makes a player discard a card:

1. Containment Construct — brings a card back
2. Scrounging Skyray — puts that many +1/+1 counters on itself
3. Curator of Mysteries — scries
4. All-Seeing Arbiter — shrinks a creature
5. Drake Haven — makes a token
6. Hekma Sentinels — gets +1/+1
7. Cunning Survivor — gets +1/+0
8. Zenith Seeker — grants flying
9. Currency Converter — exiles it
10. Bag of Holding — exiles it

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

a sorcery is cast — 581 cards in Jace's colors can cause this (Jace is one).

1. Spellweaver Volute — When a sorcery is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Spellweaver Volute copies a spell
2. Sword of Wealth and Power — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Sword of Wealth and Power copies a spell
3. Metallurgic Summonings — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Metallurgic Summonings makes a token
4. Poppet Stitcher // Poppet Factory — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Poppet Stitcher // Poppet Factory makes a token
5. Deekah, Fractal Theorist — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Deekah, Fractal Theorist makes a token
6. Muse Seeker — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Muse Seeker draws you 1 card
7. Murmuring Mystic — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Murmuring Mystic makes a token
8. Talrand, Sky Summoner — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Talrand, Sky Summoner makes a token
9. Niblis of Frost — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Niblis of Frost taps a creature an opponent controls
10. Thunderclap Drake — When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound, Thunderclap Drake sacrifices itself

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

a card is drawn — 1,454 cards in Jace's colors can cause this (Jace is one).

When Jace, Vryn's Prodigy // Jace, Telepath Unbound makes a player draw a card:

1. Toothy, Imaginary Friend — puts a +1/+1 counter on itself
2. Aether Syphon — mills a card
3. Ominous Seas — puts a foreshadow counter on itself
4. Iron Man, Armored Avenger — puts a counter on a creature
5. Psychosis Crawler — makes each opponent lose 1 life
6. Lyla, Holographic Assistant — puts a counter on a creature
7. Data, New Life — puts a +1/+1 counter on itself
8. Chasm Skulker — puts a +1/+1 counter on itself
9. Nadir Kraken — puts a +1/+1 counter on itself
10. Teferi, Temporal Pilgrim — puts a loyalty counter on itself

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

an instant is cast — 967 cards in Jace's colors can cause this (Jace is one).

When an instant is cast thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound:

1. Lunar Mystic — draws you 1 card
2. In the Eye of Chaos — counters a spell

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

a creature leaves the battlefield — 893 cards in Jace's colors can cause this (Jace is one).

When Jace, Vryn's Prodigy // Jace, Telepath Unbound leaves the battlefield:

1. Dour Port-Mage — draws you 1 card
2. Imperial Cosmographer — puts 2 +1/+1 counters on itself

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

a Human enters the battlefield — 634 cards in Jace's colors can cause this (Jace is one).

1. Captain of the Mists — When Jace, Vryn's Prodigy // Jace, Telepath Unbound enters, Captain of the Mists untaps itself

a card in a graveyard — 1,684 cards in Jace's colors can cause this (Jace is one).

Jace, Vryn's Prodigy // Jace, Telepath Unbound:

1. Gale, Waterdeep Prodigy — puts cards into the graveyard that Gale, Waterdeep Prodigy can bring back
2. Transplant Theorist — puts cards into the graveyard that Transplant Theorist can bring back
3. Heart-Shaped Herb — puts cards into the graveyard that Heart-Shaped Herb can bring back
4. Mindwhisker — fills your graveyard toward the 7 or more cards Mindwhisker needs
5. Barkform Harvester — puts cards into the graveyard that Barkform Harvester can bring back
6. Cybernetic Specialist — puts cards into the graveyard that Cybernetic Specialist can bring back
7. Picklock Prankster // Free the Fae — puts cards into the graveyard that Picklock Prankster // Free the Fae can bring back
8. Reito Sentinel — puts cards into the graveyard that Reito Sentinel can bring back
9. Most Decrepit Old Bird // Speak Secrets — fills your graveyard toward the 7 or more cards Most Decrepit Old Bird // Speak Secrets needs
10. Vantress Gargoyle — fills a graveyard toward the 7 or more cards Vantress Gargoyle needs

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

anything goes to a graveyard — 1,684 cards in Jace's colors can cause this (Jace is one).

When a card hits the graveyard thanks to Jace, Vryn's Prodigy // Jace, Telepath Unbound:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Energy Field — sacrifices itself

a creature attacks — 3,238 cards in Jace's colors can cause this (Jace is one).

When Jace, Vryn's Prodigy // Jace, Telepath Unbound attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. Screaming Swarm — mills a card
4. Imperious Mindbreaker — mills a card
5. Saw — sacrifices a creature
6. Ultima Weapon — kills a creature an opponent controls

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

anything attacks — 3,238 cards in Jace's colors can cause this (Jace is one).

When Jace, Vryn's Prodigy // Jace, Telepath Unbound attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Madame Web, Clairvoyant — mills a card
3. Gossip's Talent — triggers

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

a creature blocks — 3,238 cards in Jace's colors can cause this (Jace is one).

When Jace, Vryn's Prodigy // Jace, Telepath Unbound blocks:

1. Dead-Iron Sledge — kills a creature
2. Dwindle — kills a creature

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