Elvish Hydromancer

an Elf attacks — 723 cards in the game can cause this (Elvish Hydromancer is one).

When Elvish Hydromancer attacks:

1. Celeborn the Wise — scries
2. Tyvar the Bellicose — grants deathtouch
3. Harald Unites the Elves — shrinks a creature by -1/-1
4. Arboreal Alliance — triggers

a nontoken Elf enters the battlefield — 728 cards in the game can cause this (Elvish Hydromancer is one).

1. Wirewood Hivemaster — When Elvish Hydromancer enters, Wirewood Hivemaster makes a token

an Elf enters the battlefield — 752 cards in the game can cause this (Elvish Hydromancer is one).

When Elvish Hydromancer enters:

1. Wolverine Riders — gains you its toughness life
2. Elvish Warmaster — makes a token
3. Elvish Vanguard — puts a +1/+1 counter on itself
4. Marwyn, the Nurturer — puts a +1/+1 counter on itself
5. Woodland Weavemaster — gets +1/+1
6. High Perfect Morcant — puts a counter on a permanent an opponent controls
7. Maralen, Fae Ascendant — exiles a card from an opponent's library

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

a nontoken Wizard enters the battlefield — 1,243 cards in the game can cause this (Elvish Hydromancer is one).

1. Inalla, Archmage Ritualist — When Elvish Hydromancer enters, Inalla, Archmage Ritualist makes a token

a Wizard creature enters the battlefield — 1,264 cards in the game can cause this (Elvish Hydromancer is one).

1. Diviner's Wand — When Elvish Hydromancer enters, Diviner's Wand triggers

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

1. Jalira, Master Polymorphist — Elvish Hydromancer makes fodder for Jalira, Master Polymorphist
2. Polymorph — Elvish Hydromancer makes fodder for Polymorph
3. Birthing Ritual — Elvish Hydromancer makes fodder for Birthing Ritual
4. Proteus Staff — Elvish Hydromancer makes fodder for Proteus Staff
5. Synthetic Destiny — Elvish Hydromancer makes fodder for Synthetic Destiny
6. Mass Polymorph — Elvish Hydromancer makes fodder for Mass Polymorph

2,714 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 (Elvish Hydromancer is one).

When a creature enters thanks to Elvish Hydromancer:

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 (Elvish Hydromancer is one).

1. Staff of the Storyteller — When Elvish Hydromancer makes a creature 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 (Elvish Hydromancer is one).

When a creature enters thanks to Elvish Hydromancer:

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 (Elvish Hydromancer is one).

When Elvish Hydromancer makes a creature 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.

anything attacks — 17,934 cards in the game can cause this (Elvish Hydromancer is one).

When Elvish Hydromancer 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

127 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 (Elvish Hydromancer is one).

When Elvish Hydromancer 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

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 (Elvish Hydromancer is one).

1. Tide of War — When Elvish Hydromancer 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 (Elvish Hydromancer is one).

1. Fire Nation Salvagers — When Fire Nation Salvagers enters because Elvish Hydromancer copies it, its ability triggers again
2. Goblin Goliath — When Goblin Goliath enters because Elvish Hydromancer copies it, its ability triggers again
3. Slash, Reptile Rampager — When a creature enters thanks to Elvish Hydromancer, Slash, Reptile Rampager deals 2 damage
4. Ray Fillet, Wave Warrior — When Elvish Hydromancer enters, Ray Fillet, Wave Warrior puts a counter on itself
5. The Neutrinos — When a creature enters thanks to Elvish Hydromancer, The Neutrinos gets +1/+0
6. Wingnut, Bat on the Belfry — When a creature enters thanks to Elvish Hydromancer, Wingnut, Bat on the Belfry grants flying, haste and menace
7. Aetherstorm Roc — When a creature enters thanks to Elvish Hydromancer, Aetherstorm Roc puts a counter on a permanent you control
8. Raphael, Most Attitude — When a creature enters thanks to Elvish Hydromancer, Raphael, Most Attitude exiles a card from your 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 (Elvish Hydromancer is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a creature enters thanks to Elvish Hydromancer, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself
2. Ivora, Insatiable Heir — When Ivora, Insatiable Heir enters because Elvish Hydromancer copies it, its ability triggers again

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