Thorough Investigation

sacrifice a Clue — 21 cards in the game can cause this.

1. Candy Trail — When you sacrifice Candy Trail, Thorough Investigation triggers
2. Wrench — When you sacrifice Wrench, Thorough Investigation triggers
3. Scene of the Crime — When you sacrifice Scene of the Crime, Thorough Investigation triggers
4. Ransom Note — When you sacrifice Ransom Note, Thorough Investigation triggers
5. Found Footage — When you sacrifice Found Footage, Thorough Investigation triggers
6. Investigator's Journal — When you sacrifice Investigator's Journal, Thorough Investigation triggers
7. Tamiyo's Journal — When a Clue is sacrificed thanks to Tamiyo's Journal, Thorough Investigation triggers

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

an enchantment is cast — 3,673 cards in the game can cause this (Thorough Investigation is one).

When Thorough Investigation is cast:

1. Hallowed Haunting — makes a token
2. Daxos the Returned — puts a counter on a permanent
3. Tatsunari, Toad Rider — makes a token
4. Sythis, Harvest's Hand — gains you 1 life
5. Sigil of the Empty Throne — makes a token
6. Dawnhart Geist — gains you 2 life
7. Herald of the Pantheon — gains you 1 life
8. Kami of Transience — puts a +1/+1 counter on itself
9. Argothian Enchantress — draws you 1 card
10. Mesa Enchantress — draws you 1 card

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

a nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (Thorough Investigation is one).

1. Historian's Boon — When Thorough Investigation enters, Historian's Boon makes a token

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

When a Clue enters thanks to Thorough Investigation:

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 (Thorough Investigation is one).

When Thorough Investigation makes a Clue 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 enchantment enters the battlefield — 3,743 cards in the game can cause this (Thorough Investigation is one).

When Thorough Investigation enters:

1. Calix, Guided by Fate — puts a counter on a creature
2. Elvish Archivist — draws you 1 card
3. Victor, Valgavoth's Seneschal — surveils
4. Strength from the Fallen — gives +X/+X, where X is the number of creature cards in your graveyard
5. Doomwake Giant — shrinks a creature by -1/-1
6. Cacophony Unleashed — turns something into a creature
7. Ghostly Dancers — makes a token
8. Thassa's Devourer — mills a card
9. Killian, Decisive Mentor — taps a creature
10. Thoughtrender Lamia — makes an opponent discard a card

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

an artifact it makes cheaper to cast — 4,531 cards in the game can cause this.

1. Starnheim Courser — Starnheim Courser reduces what Thorough Investigation costs

4,530 other cards cause it too. These are the ones with the most connections.

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

When a Clue enters thanks to Thorough Investigation:

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

55 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 (Thorough Investigation is one).

When a Clue enters thanks to Thorough Investigation:

1. HYDRA Assault Robot — deals 1 damage
2. Era of Innovation — puts a counter on a permanent you control

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