The Fourth Doctor

a land is played — 97 cards in the game can cause this (The Fourth Doctor is one).

When a land plays a land thanks to The Fourth Doctor:

1. Flubs, the Fool — draws you 1 card
2. Infernal Sovereign — draws you 1 card
3. Shadow of the Goblin — deals 1 damage
4. The Endstone — draws you 1 card
5. Horn of Greed — makes a player draw 1 card
6. Pangosaur — triggers
7. City of Traitors — sacrifices itself

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

a spell is cast — 155 cards in the game can cause this (The Fourth Doctor is one).

1. Shanid, Sleepers' Scourge — When The Fourth Doctor is cast, Shanid, Sleepers' Scourge draws you 1 card
2. Glaring Fleshraker — When a spell is cast thanks to The Fourth Doctor, Glaring Fleshraker makes a token
3. The Kingpin of Crime — When a spell is cast thanks to The Fourth Doctor, The Kingpin of Crime drains each opponent
4. Leader's Talent — When a spell is cast thanks to The Fourth Doctor, Leader's Talent puts a counter on a creature
5. Elena, Turk Recruit — When a spell is cast thanks to The Fourth Doctor, Elena, Turk Recruit puts a +1/+1 counter on itself
6. Nita, Forum Conciliator — When a spell is cast thanks to The Fourth Doctor, Nita, Forum Conciliator puts a counter on a creature
7. Treasury Thrull — When a spell is cast thanks to The Fourth Doctor, Treasury Thrull drains each opponent
8. Moira and Teshar — When a spell is cast thanks to The Fourth Doctor, Moira and Teshar brings a card back
9. Teshar, Ancestor's Apostle — When a spell is cast thanks to The Fourth Doctor, Teshar, Ancestor's Apostle brings a card back
10. Norin the Wary — When a spell is cast thanks to The Fourth Doctor, Norin the Wary flickers itself

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

a token enters the battlefield — 3,710 cards in the game can cause this (The Fourth Doctor is one).

When a Food enters thanks to The Fourth Doctor:

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 (The Fourth Doctor is one).

When The Fourth Doctor makes a Food 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.

an artifact enters the battlefield — 4,643 cards in the game can cause this (The Fourth Doctor is one).

When a Food enters thanks to The Fourth Doctor:

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

59 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 (The Fourth Doctor is one).

When The Fourth Doctor 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
6. Campsite Cuisine — sacrifices a Food

125 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 (The Fourth Doctor is one).

When The Fourth Doctor attacks:

1. Adaptive Omnitool — searches a library
2. Saw — sacrifices a creature

201 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 (The Fourth Doctor is one).

1. Tide of War — When The Fourth Doctor blocks, Tide of War sacrifices a creature

28 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 (The Fourth Doctor is one).

When The Fourth Doctor enters:

1. Season of Growth — scries
2. Slash, Reptile Rampager — deals 2 damage
3. Gimli of the Glittering Caves — puts counters on a permanent
4. Ray Fillet, Wave Warrior — puts a counter on itself
5. Legolas Greenleaf — puts a counter on a permanent
6. The Neutrinos — gets +1/+0
7. Wingnut, Bat on the Belfry — grants flying, haste and menace
8. Aetherstorm Roc — puts a counter on a permanent you control
9. Raphael, Most Attitude — exiles a card from your library

339 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 (The Fourth Doctor is one).

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

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