River Kelpie

put a permanent onto the battlefield — 152 cards in the game can cause this.

1. It That Betrays — When It That Betrays enters, River Kelpie draws you 1 card
2. Nazgûl Battle-Mace — When Nazgûl Battle-Mace enters, River Kelpie draws you 1 card
3. Mole Module — When Mole Module enters, River Kelpie draws you 1 card
4. Staff of Eden, Vault's Key — When a permanent enters thanks to Staff of Eden, Vault's Key, River Kelpie draws you 1 card
5. Desecrate Reality — When a permanent enters thanks to Desecrate Reality, River Kelpie draws you 1 card

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

cast a spell — 155 cards in the game can cause this.

1. Abandoned Sarcophagus — When Abandoned Sarcophagus is cast, River Kelpie draws you 1 card

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

a Beast creature is cast — 587 cards in the game can cause this (River Kelpie is one).

1. Tawnos, the Toymaker — When River Kelpie is cast, Tawnos, the Toymaker copies a spell

a Beast enters the battlefield — 632 cards in the game can cause this (River Kelpie is one).

When River Kelpie enters:

1. Totem Speaker — gains you 3 life
2. Wirewood Savage — draws you 1 card
3. Woodland Liege — draws you 1 card
4. Aether Charge — deals 4 damage

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

When River Kelpie gets a counter:

1. Hollowmurk Siege — draws you 1 card
2. Wickersmith's Tools — puts a charge counter on itself
3. Hapatra, Vizier of Poisons — makes a token
4. Flourishing Defenses — makes a token
5. Nest of Scarabs — makes that many tokens
6. Obelisk Spider — makes each opponent lose 1 life
7. Auntie Ool, Cursewretch — draws you 1 card
8. Danny Pink — draws you 1 card
9. Mikey & Leo, Chaos & Order — draws you 1 card
10. Rikku, Resourceful Guardian — triggers

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

a card is drawn — 3,815 cards in the game can cause this (River Kelpie is one).

When River Kelpie makes a player draw a card:

1. Temmet, Naktamun's Will — gives +1/+1
2. Niv-Mizzet, Parun — deals 1 damage
3. Aether Syphon — mills a card
4. The Locust God — makes a token
5. Starving Revenant — makes each opponent lose 1 life
6. Diviner's Wand — gets +1/+1
7. Ominous Seas — puts a foreshadow counter on itself
8. Dream Trawler — gets +1/+0
9. Iron Man, Armored Avenger — puts a counter on a creature
10. The Astonishing Ant-Man — puts a +1/+1 counter on itself

57 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 (River Kelpie is one).

1. All Will Be One — When River Kelpie 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.

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

When River Kelpie attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Grim Javelineer — gives +1/+0
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
8. Banon, the Returners' Leader — draws and discards
9. Toph, Earthbending Master — puts a counter on a permanent
10. Three Dog, Galaxy News DJ — sacrifices an Aura

115 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 (River Kelpie is one).

When River Kelpie 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. Anim Pakal, Thousandth Moon — puts a +1/+1 counter on itself
7. Saw — sacrifices a creature
8. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Total War — kills a creature

181 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 (River Kelpie is one).

When River Kelpie blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Tide of War — sacrifices a creature
3. Dead-Iron Sledge — kills a creature
4. Dwindle — kills a creature

24 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 (River Kelpie is one).

When River Kelpie 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
5. Ray Fillet, Wave Warrior — puts a counter on itself
6. The Neutrinos — gets +1/+0
7. Wingnut, Bat on the Belfry — grants flying, haste and menace
8. Aetherstorm Roc — puts a counter on a permanent you control
9. Raphael, Most Attitude — exiles a card from your library

301 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 (River Kelpie is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When River Kelpie enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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