The War Doctor

anything leaves the battlefield — 1 card in the game can cause this (The War Doctor is one).

1. Shaun, Father of Synths — When Shaun, Father of Synths leaves the battlefield thanks to The War Doctor, it exiles a Synth you control

a permanent phases out — 6 cards in the game can cause this.

1. Perch Protection — When a permanent phases out thanks to Perch Protection, The War Doctor puts a time counter on itself
2. The Pandorica — When a creature, artifact, enchantment, planeswalker or battle phases out thanks to The Pandorica, The War Doctor puts a time counter on itself
3. Teferi's Protection — When a permanent phases out thanks to Teferi's Protection, The War Doctor puts a time counter on itself

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

a nontoken creature is exiled — 995 cards in the game can cause this (The War Doctor is one).

1. The War Games — When The War Doctor is exiled, The War Games exiles a Warrior

a creature is exiled — 1,003 cards in the game can cause this (The War Doctor is one).

When The War Doctor is exiled:

1. Ashnod's Intervention — brings a card back
2. Syr Vondam, Sunstar Exemplar — puts a +1/+1 counter on itself
3. Kaya, Spirits' Justice — copies a permanent
4. Soulherder — puts a +1/+1 counter on itself
5. Kaya's Ghostform — blinks a permanent

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

anything is exiled — 2,497 cards in the game can cause this.

1. Sanctifier of Souls — When Sanctifier of Souls is exiled, The War Doctor puts a time counter on itself
2. Distinguished Conjurer — When a creature is exiled thanks to Distinguished Conjurer, The War Doctor puts a time counter on itself
3. The Neutrinos — When The Neutrinos is exiled, The War Doctor puts a time counter on itself
4. Saltskitter — When Saltskitter is exiled, The War Doctor puts a time counter on itself
5. Raphael, Most Attitude — When a permanent is exiled thanks to Raphael, Most Attitude, The War Doctor puts a time counter on itself
6. Portcullis — When a creature is exiled thanks to Portcullis, The War Doctor puts a time counter on itself
7. Airbender Ascension — When a creature is exiled thanks to Airbender Ascension, The War Doctor puts a time counter on itself
8. Inti, Seneschal of the Sun — When a permanent is exiled thanks to Inti, Seneschal of the Sun, The War Doctor puts a time counter on itself
9. Summon: Brynhildr — When a permanent is exiled thanks to Summon: Brynhildr, The War Doctor puts a time counter on itself
10. Preston, the Vanisher — When a creature, artifact, enchantment, planeswalker or battle is exiled thanks to Preston, the Vanisher, The War Doctor puts a time counter on itself
11. God-Eternal Oketra — When God-Eternal Oketra is exiled thanks to The War Doctor, it triggers

1,085 other cards care about it too. These are the ones with the most connections.

a creature gets a counter — 2,691 cards in the game can cause this (The War Doctor is one).

When The War Doctor gets a counter:

1. Hollowmurk Siege — draws you 1 card
2. Generous Patron — draws you 1 card
3. Danny Pink — draws you 1 card
4. Bold Plagiarist — puts counters on a permanent
5. Mikey & Leo, Chaos & Order — draws you 1 card
6. Kros, Defense Contractor — triggers
7. Rikku, Resourceful Guardian — triggers

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

anything deals noncombat damage — 3,068 cards in the game can cause this (The War Doctor is one).

When The War Doctor deals noncombat damage:

1. Quest for Pure Flame — puts a quest counter on itself
2. Soul-Scar Mage — puts that many counters on a permanent
3. Fear of Burning Alive — deals that amount damage
4. Niv-Mizzet, Visionary — draws you that many cards
5. Chandra's Incinerator — deals that much damage
6. Chandra's Pyreling — gets +1/+0
7. Talon of Pain — puts a charge counter on itself
8. Asgardian Inspiration — returns itself from the graveyard
9. Thor, Guardian of Midgard — exiles a card from your library
10. Virtue of Courage // Embereth Blaze — exiles a card from your library

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

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

When The War Doctor makes a player lose life:

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. Oath of Lim-Dûl — sacrifices an enchantment
9. Marina Vendrell's Grimoire — triggers
10. Lich's Mastery — triggers

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

a nontoken creature leaves the battlefield — 4,133 cards in the game can cause this (The War Doctor is one).

When The War Doctor leaves the battlefield:

1. Tokka & Rahzar, Unsupervised — puts a +1/+1 counter on itself
2. Splinter, the Mentor — makes a token
3. Rat King, Pale Piper — makes a token
4. Dual Nature — exiles a creature

a creature leaves the battlefield — 4,238 cards in the game can cause this (The War Doctor is one).

1. Lunarch Veteran // Luminous Phantom — When The War Doctor leaves the battlefield, Lunarch Veteran // Luminous Phantom gains you 1 life
2. Rapacious Guest — When Rapacious Guest leaves the battlefield thanks to The War Doctor, it makes each opponent lose life equal to its power
3. Extractor Demon — When The War Doctor leaves the battlefield, Extractor Demon mills a card
4. Aang, Airbending Master — When The War Doctor leaves the battlefield, Aang, Airbending Master puts a counter on a permanent
5. Dour Port-Mage — When The War Doctor leaves the battlefield, Dour Port-Mage draws you 1 card
6. Vela the Night-Clad — When The War Doctor leaves the battlefield, Vela the Night-Clad makes each opponent lose 1 life
7. Champions of the Perfect — When Champions of the Perfect leaves the battlefield thanks to The War Doctor, it triggers
8. Phantasmal Mount — When Phantasmal Mount leaves the battlefield thanks to The War Doctor, it triggers
9. Funeral March — When The War Doctor leaves the battlefield, Funeral March makes a player sacrifice a creature
10. Sally Sparrow — When The War Doctor leaves the battlefield, Sally Sparrow triggers

21 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 (The War Doctor is one).

1. All Will Be One — When The War Doctor gets a counter, All Will Be One deals that much damage

8 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 War Doctor is one).

When The War Doctor attacks:

1. Anthem of Rakdos — gives +2/+0
2. Adaptive Omnitool — searches a library

188 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 War Doctor is one).

When The War Doctor attacks:

1. Temmet, Naktamun's Will — draws you 1 card
2. Invisible Woman — triggers
3. Caesar, Legion's Emperor — sacrifices a creature

121 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 War Doctor is one).

When The War Doctor enters:

1. Scurry Oak — puts a counter on itself
2. Fathom Mage — puts a counter on itself
3. Lonis, Genetics Expert — puts a counter on itself
4. Slash, Reptile Rampager — deals 2 damage

307 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 War Doctor is one).

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

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