Gamekeeper

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

When Gamekeeper 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 (Gamekeeper is one).

1. Wirewood Hivemaster — When Gamekeeper enters, Wirewood Hivemaster makes a token

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

When Gamekeeper 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 creature is exiled — 995 cards in the game can cause this (Gamekeeper is one).

1. The War Games — When Gamekeeper is exiled, The War Games exiles a Warrior

a creature is exiled — 1,003 cards in the game can cause this (Gamekeeper is one).

When Gamekeeper is exiled:

1. Ashnod's Intervention — brings a card back
2. Syr Vondam, Sunstar Exemplar — puts a +1/+1 counter on itself
3. Kaya, Spirits' Justice — copies a permanent
4. Soulherder — puts a +1/+1 counter on itself
5. Kaya's Ghostform — blinks a permanent

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

anything is exiled — 2,497 cards in the game can cause this (Gamekeeper is one).

1. The War Doctor — When Gamekeeper is exiled, The War Doctor puts a time counter on itself

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

a nontoken creature leaves the battlefield — 4,133 cards in the game can cause this (Gamekeeper is one).

When Gamekeeper leaves the battlefield:

1. Tokka & Rahzar, Unsupervised — puts a +1/+1 counter on itself
2. Splinter, the Mentor — makes a token
3. Rat King, Pale Piper — makes a token
4. Dual Nature — exiles a creature

a creature leaves the battlefield — 4,238 cards in the game can cause this (Gamekeeper is one).

When Gamekeeper leaves the battlefield:

1. Lunarch Veteran // Luminous Phantom — gains you 1 life
2. Extractor Demon — mills a card
3. Aang, Airbending Master — puts a counter on a permanent
4. Dour Port-Mage — draws you 1 card
5. Vela the Night-Clad — makes each opponent lose 1 life
6. Taeko, the Patient Avalanche — scries
7. Ninth Bridge Patrol — puts a +1/+1 counter on itself
8. Funeral March — makes a player sacrifice a creature
9. Sally Sparrow — triggers
10. Aang, at the Crossroads // Aang, Destined Savior — triggers

21 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 (Gamekeeper is one).

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

When a card hits the graveyard thanks to Gamekeeper:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Measure of Wickedness — gives an opponent control of itself

9 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 (Gamekeeper is one).

1. Shaun, Father of Synths — When Gamekeeper attacks, Shaun, Father of Synths makes a token

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

a creature is cast — 18,010 cards in the game can cause this (Gamekeeper is one).

When Gamekeeper is cast:

1. God-Eternal Oketra — makes a token
2. Champions of the Perfect — draws you 1 card

89 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 (Gamekeeper is one).

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

341 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 (Gamekeeper is one).

1. Zenos yae Galvus // Shinryu, Transcendent Rival — When Zenos yae Galvus // Shinryu, Transcendent Rival enters thanks to Gamekeeper, it shrinks a creature by -2/-2
2. The Reaper, King No More — When The Reaper, King No More enters thanks to Gamekeeper, it puts a counter on a creature
3. Rosheen, Roaring Prophet — When Rosheen, Roaring Prophet enters thanks to Gamekeeper, it mills a card
4. Kotose, the Silent Spider — When Kotose, the Silent Spider enters thanks to Gamekeeper, it brings a card back

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