Zoologist

a creature is milled — 14 cards in the game can cause this (Zoologist is one).

When a creature makes a player mill a card thanks to Zoologist:

1. Zellix, Sanity Flayer — makes a token
2. Screeching Scorchbeast — makes that many tokens
3. Glowing One — gains you 1 life
4. Mirelurk Queen — draws you 1 card
5. The Wise Mothman — puts a counter on a creature

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

a creature goes to a graveyard — 3,011 cards in the game can cause this (Zoologist is one).

When a card hits the graveyard thanks to Zoologist:

1. Syr Konrad, the Grim — deals 1 damage
2. Robot Domination — draws you 1 card
3. Voracious Brood — puts that many +1/+1 counters on itself
4. Dennick, Pious Apprentice // Dennick, Pious Apparition — triggers
5. Soulcipher Board // Cipherbound Spirit — triggers
6. Sefris of the Hidden Ways — triggers

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

a Human enters the battlefield — 4,639 cards in the game can cause this (Zoologist is one).

When Zoologist enters:

1. General Kudro of Drannith — hits a graveyard
2. Heronblade Elite — puts a +1/+1 counter on itself
3. Kyler, Sigardian Emissary — puts a +1/+1 counter on itself
4. Thalia's Lieutenant — puts a +1/+1 counter on itself
5. Champion of the Parish — puts a +1/+1 counter on itself
6. Captain of the Mists — untaps itself
7. Erkenbrand, Lord of Westfold — gives +1/+0
8. Beregond of the Guard — gives +1/+1
9. Théoden, King of Rohan — grants double strike
10. Lossarnach Captain — taps a creature an opponent controls

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

a card in a graveyard — 7,589 cards in the game can cause this (Zoologist is one).

1. Samwise Gamgee — Zoologist puts cards into the graveyard that Samwise Gamgee can bring back
2. Bloodbond March — Zoologist puts cards into the graveyard that Bloodbond March can bring back
3. Thor, God of Thunder — Zoologist puts cards into the graveyard that Thor, God of Thunder can bring back
4. Gale, Waterdeep Prodigy — Zoologist puts cards into the graveyard that Gale, Waterdeep Prodigy can bring back
5. Harness the Storm — Zoologist puts cards into the graveyard that Harness the Storm can bring back
6. Transplant Theorist — Zoologist puts cards into the graveyard that Transplant Theorist can bring back
7. Heart-Shaped Herb — Zoologist puts cards into the graveyard that Heart-Shaped Herb can bring back
8. Wayward Angel — Zoologist fills your graveyard toward the 7 or more cards Wayward Angel needs
9. Rescue from the Underworld — Zoologist puts cards into the graveyard that Rescue from the Underworld can bring back
10. Victimize — Zoologist puts cards into the graveyard that Victimize can bring back

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

anything goes to a graveyard — 7,589 cards in the game can cause this (Zoologist is one).

When a card hits the graveyard thanks to Zoologist:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Planar Void — hits a graveyard
3. Measure of Wickedness — gives an opponent control of itself
4. Energy Field — sacrifices itself

7 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 (Zoologist is one).

When Zoologist 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
7. Gossip's Talent — triggers

121 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 (Zoologist is one).

When Zoologist attacks:

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

198 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 (Zoologist is one).

1. Tide of War — When Zoologist 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 (Zoologist is one).

1. Colossal Grave-Reaver — When Colossal Grave-Reaver enters thanks to Zoologist, it mills a card
2. Unshakable Tail — When Unshakable Tail enters thanks to Zoologist, it surveils
3. Dreadhound — When Dreadhound enters thanks to Zoologist, it mills a card
4. Fire Nation Salvagers — When Fire Nation Salvagers enters thanks to Zoologist, it puts a counter on a creature or Vehicle
5. Thieves' Guild Enforcer — When Thieves' Guild Enforcer enters thanks to Zoologist, it mills a card
6. Author of Shadows — When Author of Shadows enters thanks to Zoologist, it brings a card back
7. Landscaper Colos — When Landscaper Colos enters thanks to Zoologist, it brings a card back
8. Twilight Shepherd — When Twilight Shepherd enters thanks to Zoologist, it brings a card back
9. Cavalier of Thorns — When Cavalier of Thorns enters thanks to Zoologist, it puts a land onto the battlefield
10. Crabomination — When Crabomination enters thanks to Zoologist, it exiles a card from an opponent's library

343 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 (Zoologist is one).

1. Sidisi, Brood Tyrant — When Sidisi, Brood Tyrant enters thanks to Zoologist, it mills a card
2. The Reaper, King No More — When The Reaper, King No More enters thanks to Zoologist, it puts a counter on a creature
3. Rosheen, Roaring Prophet — When Rosheen, Roaring Prophet enters thanks to Zoologist, it mills a card
4. Kotose, the Silent Spider — When Kotose, the Silent Spider enters thanks to Zoologist, it brings a card back
5. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a creature enters thanks to Zoologist, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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