Ethereal Investigator

a nontoken Spirit deals combat damage — 725 cards in the game can cause this (Ethereal Investigator is one).

1. Millicent, Restless Revenant — When Ethereal Investigator deals combat damage, Millicent, Restless Revenant makes a token

a nontoken Spirit enters the battlefield — 727 cards in the game can cause this (Ethereal Investigator is one).

1. Baboon Spirit — When Ethereal Investigator enters, Baboon Spirit makes a token

a Spirit enters the battlefield — 863 cards in the game can cause this (Ethereal Investigator is one).

When a Spirit enters thanks to Ethereal Investigator:

1. Mausoleum Wanderer — gets +1/+1
2. Drogskol Cavalry — gains you 2 life
3. Vanguard of the Restless — returns itself from the graveyard
4. Nebelgast Herald — taps a creature an opponent controls

a Spirit it boosts — 895 cards in the game can cause this.

1. Supreme Phantom — Supreme Phantom gives Ethereal Investigator bigger stats

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

provide a creature to sacrifice — 2,720 cards in the game can cause this.

1. Jalira, Master Polymorphist — Ethereal Investigator makes fodder for Jalira, Master Polymorphist
2. Polymorph — Ethereal Investigator makes fodder for Polymorph
3. Proteus Staff — Ethereal Investigator makes fodder for Proteus Staff
4. Synthetic Destiny — Ethereal Investigator makes fodder for Synthetic Destiny
5. Mass Polymorph — Ethereal Investigator makes fodder for Mass Polymorph

2,715 other cards cause it too. These are the ones with the most connections.

a creature token enters the battlefield — 2,799 cards in the game can cause this (Ethereal Investigator is one).

When a Spirit enters thanks to Ethereal Investigator:

1. Securitron Squadron — puts a counter on a permanent
2. Anointer Priest — gains you 1 life
3. Nesting Dovehawk — puts a +1/+1 counter on itself

a creature token is created — 2,799 cards in the game can cause this (Ethereal Investigator is one).

1. Staff of the Storyteller — When Ethereal Investigator makes a Spirit token, Staff of the Storyteller puts a story counter on itself

3 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 (Ethereal Investigator is one).

When a Clue enters thanks to Ethereal Investigator:

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 a token
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 (Ethereal Investigator is one).

When Ethereal Investigator 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 artifact enters the battlefield — 4,643 cards in the game can cause this (Ethereal Investigator is one).

When a Clue enters thanks to Ethereal Investigator:

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

58 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 (Ethereal Investigator is one).

When Ethereal Investigator attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Grim Javelineer — gives +1/+0
4. Invisible Woman — triggers
5. Caesar, Legion's Emperor — sacrifices a creature
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Banon, the Returners' Leader — draws and discards
10. Toph, Earthbending Master — puts a counter on a permanent

131 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 (Ethereal Investigator is one).

When Ethereal Investigator attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Saw — sacrifices a creature
7. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
8. Ultima Weapon — kills a creature an opponent controls

200 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 (Ethereal Investigator is one).

1. Tide of War — When Ethereal Investigator blocks, Tide of War sacrifices a creature

29 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 (Ethereal Investigator is one).

1. Slash, Reptile Rampager — When a Spirit enters thanks to Ethereal Investigator, Slash, Reptile Rampager deals 2 damage
2. Ray Fillet, Wave Warrior — When Ethereal Investigator enters, Ray Fillet, Wave Warrior puts a counter on itself
3. The Neutrinos — When a Spirit enters thanks to Ethereal Investigator, The Neutrinos gets +1/+0
4. Wingnut, Bat on the Belfry — When a Spirit enters thanks to Ethereal Investigator, Wingnut, Bat on the Belfry grants flying, haste and menace
5. Aetherstorm Roc — When a Spirit enters thanks to Ethereal Investigator, Aetherstorm Roc puts a counter on a permanent you control
6. Raphael, Most Attitude — When a Spirit enters thanks to Ethereal Investigator, Raphael, Most Attitude exiles a card from your library

356 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 (Ethereal Investigator is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a Spirit enters thanks to Ethereal Investigator, 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.