Jötun Owl Keeper

a Bird enters the battlefield — 538 cards in the game can cause this (Jötun Owl Keeper is one).

1. Salvation Swan — When a Bird enters thanks to Jötun Owl Keeper, Salvation Swan flickers a creature you control

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

a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Jötun Owl Keeper is one).

When you sacrifice Jötun Owl Keeper:

1. Fumulus, the Infestation — makes a token
2. Bag of Devouring — exiles it

a creature is sacrificed — 1,741 cards in the game can cause this (Jötun Owl Keeper is one).

When you sacrifice Jötun Owl Keeper:

1. Ziatora, the Incinerator — deals that creature's power damage
2. Dina, Essence Brewer — draws you 1 card
3. Fleshtaker — gains you 1 life
4. Body Dropper — puts a +1/+1 counter on itself
5. Smothering Abomination — draws you 1 card
6. Kels, Fight Fixer — draws you 1 card
7. Caesar, Legion's Emperor — triggers
8. Grist, the Hunger Tide — kills a creature or planeswalker an opponent controls
9. Cabal Therapist — triggers
10. Rakdos, the Muscle — exiles a card from an opponent's library

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

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

When Jötun Owl Keeper gets a counter:

1. Hollowmurk Siege — draws you 1 card
2. Danny Pink — draws you 1 card
3. Mikey & Leo, Chaos & Order — draws you 1 card
4. Rikku, Resourceful Guardian — triggers

39 other cards care about 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 — Jötun Owl Keeper makes fodder for Jalira, Master Polymorphist
2. Polymorph — Jötun Owl Keeper makes fodder for Polymorph
3. Proteus Staff — Jötun Owl Keeper makes fodder for Proteus Staff
4. Synthetic Destiny — Jötun Owl Keeper makes fodder for Synthetic Destiny
5. Mass Polymorph — Jötun Owl Keeper makes fodder for Mass Polymorph

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

a creature in a graveyard — 2,769 cards in the game can cause this (Jötun Owl Keeper is one).

When Jötun Owl Keeper is in the graveyard:

1. Chainer, Dementia Master — can bring it back
2. Havengul Lich — can bring it back
3. Liliana the Repentant — can bring it back
4. Paleoloth — can bring it back
5. Chainer, Nightmare Adept — can bring it back
6. Banon, the Returners' Leader — can bring it back
7. Surgical Suite // Hospital Room — can bring it back
8. Sword of Light and Shadow — can bring it back
9. Necromantic Thirst — can bring it back
10. Krile Baldesion — can bring it back

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

a nontoken creature dies — 2,769 cards in the game can cause this (Jötun Owl Keeper is one).

When Jötun Owl Keeper dies:

1. Zahur, Glory's Past — makes a token
2. Liesa, Forgotten Archangel — brings a card back
3. Avacyn, Angel of Horror — brings a card back
4. Yedora, Grave Gardener — brings a card back
5. Nim Deathmantle — brings a card back
6. Valkyrie's Call — brings a card back
7. Decaying Soil — brings a card back
8. High-Society Hunter — draws you 1 card
9. Liliana, Heretical Healer // Liliana, Defiant Necromancer — flickers itself
10. Body Launderer — draws and discards

60 other cards care about 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 (Jötun Owl Keeper is one).

When a Bird enters thanks to Jötun Owl Keeper:

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 (Jötun Owl Keeper is one).

1. Staff of the Storyteller — When Jötun Owl Keeper makes a Bird 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 creature dies — 2,830 cards in the game can cause this (Jötun Owl Keeper is one).

When Jötun Owl Keeper dies:

1. Pious Evangel // Wayward Disciple — makes each opponent lose 1 life
2. Daxos, Blessed by the Sun — gains you 1 life
3. Bereaved Survivor // Dauntless Avenger — triggers

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

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

1. Ninja Teen — When Jötun Owl Keeper leaves the battlefield, Ninja Teen makes each opponent lose 1 life

34 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 (Jötun Owl Keeper is one).

1. Havi, the All-Father — Jötun Owl Keeper fills your graveyard toward the 4 or more cards Havi, the All-Father needs

443 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 (Jötun Owl Keeper is one).

1. Shaun, Father of Synths — When Jötun Owl Keeper attacks, Shaun, Father of Synths makes a token

159 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 (Jötun Owl Keeper is one).

1. Chorale of the Void — When Jötun Owl Keeper attacks, Chorale of the Void brings a card back

232 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 (Jötun Owl Keeper is one).

When Jötun Owl Keeper enters:

1. Scurry Oak — puts a counter on itself
2. Fathom Mage — puts a counter on itself

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