Vrock

a Demon enters the battlefield — 284 cards in the game can cause this (Vrock is one).

1. Blood Speaker — When Vrock enters, Blood Speaker returns itself from the graveyard
2. Be'lakor, the Dark Master — When Vrock enters, Be'lakor, the Dark Master deals its power damage

a Bird attacks — 486 cards in the game can cause this (Vrock is one).

1. Hermes, Overseer of Elpis — When Vrock attacks, Hermes, Overseer of Elpis scries
2. Choco, Seeker of Paradise — When Vrock attacks, Choco, Seeker of Paradise puts a land onto the battlefield

a Bird creature is cast — 486 cards in the game can cause this (Vrock is one).

1. Chocobo Camp — When Vrock is cast, it arrives with counters thanks to Chocobo Camp

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

a Bird deals combat damage — 486 cards in the game can cause this (Vrock is one).

1. Kastral, the Windcrested — When Vrock deals combat damage, Kastral, the Windcrested triggers

a nontoken Bird enters the battlefield — 487 cards in the game can cause this (Vrock is one).

1. Knightfisher — When Vrock enters, Knightfisher makes a token

a Bird enters the battlefield — 538 cards in the game can cause this (Vrock is one).

1. Salvation Swan — When Vrock enters, Salvation Swan flickers a creature you control

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

life is lost — 3,160 cards in the game can cause this (Vrock is one).

When a permanent makes a player lose life thanks to Vrock:

1. Far Fortune, End Boss — raises your speed
2. Zahur, Glory's Past — raises your speed
3. Mendicant Core, Guidelight — raises your speed
4. Aether Syphon — raises your speed
5. Vnwxt, Verbose Host — raises your speed
6. Embalmed Ascendant — raises your speed
7. Slick Imitator — raises your speed
8. Nesting Bot — raises your speed
9. Howlsquad Heavy — raises your speed
10. Hour of Victory — raises your speed

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

anything gets a counter — 4,415 cards in the game can cause this (Vrock is one).

1. All Will Be One — When a permanent gets a counter thanks to Vrock, All Will Be One deals that much damage

8 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 (Vrock is one).

1. Temmet, Naktamun's Will — When Vrock attacks, Temmet, Naktamun's Will draws you 1 card
2. Grim Javelineer — When Vrock attacks, Grim Javelineer gives +1/+0
3. Invisible Woman — When Vrock attacks, Invisible Woman triggers
4. Caesar, Legion's Emperor — When Vrock attacks, Caesar, Legion's Emperor sacrifices a creature
5. Guide of Souls — When Vrock attacks, Guide of Souls triggers
6. Campsite Cuisine — When Vrock attacks, Campsite Cuisine sacrifices a Food
7. Gossip's Talent — When Vrock attacks, Gossip's Talent triggers
8. Banon, the Returners' Leader — When Vrock attacks, Banon, the Returners' Leader draws and discards
9. Toph, Earthbending Master — When Vrock attacks, Toph, Earthbending Master puts a counter on a permanent
10. Three Dog, Galaxy News DJ — When Vrock attacks, Three Dog, Galaxy News DJ sacrifices an Aura

111 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 (Vrock is one).

1. Adaptive Omnitool — When Vrock attacks, Adaptive Omnitool searches a library
2. Anthem of Rakdos — When Vrock attacks, Anthem of Rakdos gives +2/+0
3. Kindred Discovery — When Vrock attacks, Kindred Discovery draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — When Vrock attacks, Invasion of New Capenna // Holy Frazzle-Cannon puts counters on a permanent
5. Chorale of the Void — When Vrock attacks, Chorale of the Void brings a card back
6. Anim Pakal, Thousandth Moon — When Vrock attacks, Anim Pakal, Thousandth Moon puts a +1/+1 counter on itself
7. Saw — When Vrock attacks, Saw sacrifices a creature
8. Gisa's Favorite Shovel — When Vrock attacks, Gisa's Favorite Shovel makes an opponent sacrifice a creature
9. Ultima Weapon — When Vrock attacks, Ultima Weapon kills a creature an opponent controls
10. Total War — When Vrock attacks, Total War kills a creature

180 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 (Vrock is one).

1. Mage Hunters' Onslaught — When Vrock blocks, Mage Hunters' Onslaught makes a player lose 1 life
2. Carnage Gladiator — When Vrock blocks, Carnage Gladiator makes a player lose 1 life
3. Barrow-Blade — When Vrock blocks, Barrow-Blade strips abilities
4. Heat of Battle — When Vrock blocks, Heat of Battle deals 1 damage
5. Battle Strain — When Vrock blocks, Battle Strain deals 1 damage
6. Favor of the Woods — When Vrock blocks, Favor of the Woods gains you 3 life
7. Tide of War — When Vrock blocks, Tide of War sacrifices a creature
8. Dead-Iron Sledge — When Vrock blocks, Dead-Iron Sledge kills a creature
9. Dwindle — When Vrock blocks, Dwindle kills a creature
10. Shield of the Righteous — When Vrock blocks, Shield of the Righteous triggers

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

a nontoken creature attacks — 17,934 cards in the game can cause this (Vrock is one).

1. Mardu Ascendancy — When Vrock attacks, Mardu Ascendancy makes a token
2. Basri Ket — When Vrock attacks, Basri Ket makes a token
3. Militia's Pride — When Vrock attacks, Militia's Pride makes a token

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

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

302 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 (Vrock is one).

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

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