U.S.Agent, John Walker

a Hero enters the battlefield — 116 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

When U.S.Agent, John Walker enters:

1. Nighthawk, Dark Defender — gives +1/+1
2. Team Transmitter — gains you 1 life

an Equipment enters the battlefield — 501 cards in U.S.Agent's colors 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. Hammer of Nazahn — triggers
3. Sigarda's Aid — triggers

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

a Soldier creature enters the battlefield — 778 cards in U.S.Agent's colors 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 — 1,433 cards in U.S.Agent's colors 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. Belladonna Took — gains you 1 life
3. Kambal, Profiteering Mayor — makes each opponent lose 1 life
4. Lucy MacLean, Positively Armed — makes a token
5. Caretaker's Talent — draws you 1 card
6. Spiritcall Enthusiast // Scrollboost — becomes prepared

a token is created — 1,434 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

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

1. Idol of Oblivion — draws you 1 card
2. Rosie Cotton of South Lane — puts a counter on a permanent
3. Mirkwood Bats — makes each opponent lose 1 life

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

a Human enters the battlefield — 1,907 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

When U.S.Agent, John Walker enters:

1. General Kudro of Drannith — hits a graveyard
2. Thalia's Lieutenant — puts a +1/+1 counter on itself
3. Champion of the Parish — puts a +1/+1 counter on itself
4. Beregond of the Guard — gives +1/+1
5. Lossarnach Captain — taps a creature an opponent controls

an artifact enters the battlefield — 3,046 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

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

1. Underhanded Designs — makes each opponent lose 1 life
2. Pactdoll Terror — makes each opponent lose 1 life
3. Mandible Justiciar — gets +1/+1
4. Arcbound Crusher — puts a +1/+1 counter on itself
5. Arcbound Condor — shrinks a creature by -1/-1
6. Glaze Fiend — gets +2/+2
7. Battered Golem — untaps itself
8. Skorpekh Destroyer — grants first strike
9. Grinding Station — untaps itself
10. Leonin Elder — gains you 1 life

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

a creature attacks — 6,543 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

When U.S.Agent, John Walker attacks:

1. Paleontologist's Pick-Axe // Dinosaur Headdress — draws you 1 card
2. Adaptive Omnitool — searches a library
3. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
4. Chorale of the Void — brings a card back
5. Staff of Titania — makes a token
6. Thunder Lasso — taps a creature an opponent controls
7. Saw — sacrifices a creature
8. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Super-Soldier Serum — triggers

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

anything attacks — 6,543 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

When U.S.Agent, John Walker attacks:

1. Grim Javelineer — gives +1/+0
2. ED-E, Lonesome Eyebot — puts a quest counter on itself
3. Surgical Suite // Hospital Room — puts a counter on a creature
4. Fire Navy Trebuchet — makes a token
5. Apothecary White — makes a token
6. Clavileño, First of the Blessed — turns something into a creature
7. Adeline, Resplendent Cathar — makes a token
8. Dalkovan Encampment — makes 2 tokens
9. Guide of Souls — triggers
10. Warren Warleader — triggers

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

a creature blocks — 6,543 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

When U.S.Agent, John Walker blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Barrow-Blade — strips abilities
3. Noble Stand — gains you 2 life
4. Battle Cry — gives +0/+1
5. Dead-Iron Sledge — kills a creature

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

a nontoken creature attacks — 6,543 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

When U.S.Agent, John Walker attacks:

1. Basri Ket — makes a token
2. Militia's Pride — makes a token

a creature deals combat damage — 6,543 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

1. Antagonist Incorporator — When U.S.Agent, John Walker deals combat damage, Antagonist Incorporator makes a token

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

a creature enters the battlefield — 7,459 cards in U.S.Agent's colors can cause this (U.S.Agent is one).

1. Aetherstorm Roc — When U.S.Agent, John Walker enters, Aetherstorm Roc puts a counter on a permanent you control

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

anything enters the battlefield — 10,830 cards in U.S.Agent's colors 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

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