U.S.Agent, John Walker

a nontoken Hero enters the battlefield — 358 cards in the game can cause this (U.S.Agent is one).

1. Black Panther, Vanguard — When U.S.Agent, John Walker enters, Black Panther, Vanguard triggers

a Hero enters the battlefield — 375 cards in the game can cause this (U.S.Agent is one).

When U.S.Agent, John Walker enters:

1. Hawkeye, Trick Shot — deals damage
2. Captain America, Team Leader — grants haste and vigilance
3. Nighthawk, Dark Defender — gives +1/+1
4. Team Transmitter — gains you 1 life

an Equipment enters the battlefield — 658 cards in the game can cause this (U.S.Agent is one).

When an Equipment enters thanks to U.S.Agent, John Walker:

1. Puresteel Paladin — draws you 1 card
2. Sokka and Suki — makes a token
3. Barret, Avalanche Leader — makes a token
4. The Mighty Thor, Jane Foster — draws you 1 card
5. Giott, King of the Dwarves — draws and discards
6. Hammer of Nazahn — triggers
7. Sigarda's Aid — triggers

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

a Soldier creature enters the battlefield — 1,279 cards in the game can cause this (U.S.Agent is one).

1. Veteran's Armaments — When U.S.Agent, John Walker enters, Veteran's Armaments triggers

a token enters the battlefield — 3,710 cards in the game can cause this (U.S.Agent is one).

When an Equipment enters thanks to U.S.Agent, John Walker:

1. Baron Bertram Graywater — makes a token
2. Marneus Calgar — draws you 1 card
3. Belladonna Took — gains you 1 life
4. Kambal, Profiteering Mayor — makes each opponent lose 1 life
5. Lucy MacLean, Positively Armed — makes a token
6. Mister Fantastic, Reed Richards — draws you 1 card
7. Cloakwood Swarmkeeper — puts a +1/+1 counter on itself
8. Woodland Champion — puts that many +1/+1 counters on itself
9. Leonardo, the Balance — puts a counter on a creature
10. Spiritcall Enthusiast // Scrollboost — becomes prepared

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

a token is created — 3,711 cards in the game can cause this (U.S.Agent is one).

When U.S.Agent, John Walker makes an Equipment token:

1. Akim, the Soaring Wind — makes a token
2. Idol of Oblivion — draws you 1 card
3. Rosie Cotton of South Lane — puts a counter on a permanent
4. Mirkwood Bats — makes each opponent lose 1 life

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

a Human enters the battlefield — 4,639 cards in the game can cause this (U.S.Agent is one).

When U.S.Agent, John Walker enters:

1. General Kudro of Drannith — hits a graveyard
2. Heronblade Elite — puts a +1/+1 counter on itself
3. Kyler, Sigardian Emissary — puts a +1/+1 counter on itself
4. Thalia's Lieutenant — puts a +1/+1 counter on itself
5. Champion of the Parish — puts a +1/+1 counter on itself
6. Captain of the Mists — untaps itself
7. Erkenbrand, Lord of Westfold — gives +1/+0
8. Beregond of the Guard — gives +1/+1
9. Théoden, King of Rohan — grants double strike
10. Lossarnach Captain — taps a creature an opponent controls

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

an artifact enters the battlefield — 4,643 cards in the game can cause this (U.S.Agent is one).

When an Equipment enters thanks to U.S.Agent, John Walker:

1. Transplant Theorist — draws you 1 card
2. Elvish Archivist — puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — surveils
4. Sludge Strider — makes a player lose 1 life
5. Underhanded Designs — makes each opponent lose 1 life
6. Mechan Assembler — makes a token
7. Glassdust Hulk — gets +1/+1
8. Rook Turret — draws you 1 card
9. Hedron Detonator — deals 1 damage
10. Pactdoll Terror — makes each opponent lose 1 life

56 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 (U.S.Agent is one).

When U.S.Agent, John Walker attacks:

1. Fractal Harness — puts counters on a permanent
2. Paleontologist's Pick-Axe // Dinosaur Headdress — draws you 1 card
3. Adaptive Omnitool — searches a library
4. Baseball Bat — taps a creature
5. Thunder Lasso — taps a creature an opponent controls

192 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 (U.S.Agent is one).

When U.S.Agent, John Walker attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers

127 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 (U.S.Agent is one).

When U.S.Agent, John Walker enters:

1. Slash, Reptile Rampager — deals 2 damage
2. Gimli of the Glittering Caves — puts counters on a permanent

328 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 (U.S.Agent is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When U.S.Agent, John Walker enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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