Summon: Brynhildr

a Knight creature in a graveyard — 15 cards in the game can cause this (Summon: Brynhildr is one).

When Summon: Brynhildr is in the graveyard:

1. Knights' Charge — can bring it back
2. Sidar Jabari of Zhalfir — can bring it back

a nontoken Knight is put into a graveyard from the battlefield — 16 cards in the game can cause this (Summon: Brynhildr is one).

1. Locthwain Lancer — When Summon: Brynhildr is put into a graveyard from the battlefield, Locthwain Lancer makes each opponent lose 1 life

a Knight in a graveyard — 16 cards in the game can cause this (Summon: Brynhildr is one).

1. Barrow Witches — When Summon: Brynhildr is in the graveyard, Barrow Witches can bring it back

a Saga in a graveyard — 186 cards in the game can cause this (Summon: Brynhildr is one).

When Summon: Brynhildr is in the graveyard:

1. Rydia, Summoner of Mist — can bring it back
2. Satsuki, the Living Lore — can bring it back

a Knight deals combat damage — 547 cards in the game can cause this (Summon: Brynhildr is one).

1. Exsanguinator Cavalry — When Summon: Brynhildr deals combat damage, Exsanguinator Cavalry puts a counter on a permanent

an enchantment is sacrificed — 588 cards in the game can cause this (Summon: Brynhildr is one).

1. Narci, Fable Singer — When you sacrifice Summon: Brynhildr, Narci, Fable Singer draws you 1 card

a Knight enters the battlefield — 592 cards in the game can cause this (Summon: Brynhildr is one).

When Summon: Brynhildr enters:

1. Brimstone Trebuchet — untaps itself
2. Zhalfirin Lancer — gets +1/+1

an enchantment in a graveyard — 983 cards in the game can cause this (Summon: Brynhildr is one).

When Summon: Brynhildr is in the graveyard:

1. Lotus-Eye Mystics — can bring it back
2. Tasigur, the Golden Fang — can bring it back
3. Emeria Shepherd — can bring it back
4. Moment of Reckoning — can bring it back
5. Bramble Familiar // Fetch Quest — can bring it back
6. Serra Paragon — can bring it back
7. Odunos River Trawler — can bring it back
8. Muldrotha, the Gravetide — can bring it back
9. Invasion of Tolvada // The Broken Sky — can bring it back
10. Loamcrafter Faun — can bring it back

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

an enchantment is put into a graveyard from the battlefield — 987 cards in the game can cause this (Summon: Brynhildr is one).

When Summon: Brynhildr is put into a graveyard from the battlefield:

1. Knight of Doves — makes a token
2. Warehouse Tabby — makes a token
3. Starfield Mystic — puts a +1/+1 counter on itself
4. Femeref Enchantress — draws you 1 card
5. Savior of the Sleeping — puts a +1/+1 counter on itself
6. Ashiok's Reaper — draws you 1 card
7. Wicked Visitor — makes each opponent lose 1 life
8. Martyr's Bond — makes an opponent sacrifice a permanent

2 other cards care 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 (Summon: Brynhildr is one).

When you sacrifice Summon: Brynhildr:

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 (Summon: Brynhildr is one).

When you sacrifice Summon: Brynhildr:

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

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

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

1. The War Doctor — When a permanent is exiled thanks to Summon: Brynhildr, The War Doctor puts a time counter on itself
2. God-Eternal Oketra — When God-Eternal Oketra is exiled thanks to Summon: Brynhildr, it triggers

a creature in a graveyard — 2,769 cards in the game can cause this (Summon: Brynhildr is one).

When Summon: Brynhildr is in the graveyard:

1. Necromancy — can bring it back
2. Chainer, Dementia Master — can bring it back
3. Diabolic Servitude — can bring it back
4. Deadbridge Chant — can bring it back
5. Retrieve — can bring it back
6. Havengul Lich — can bring it back
7. Liliana the Repentant — can bring it back
8. Paleoloth — can bring it back
9. Chainer, Nightmare Adept — can bring it back
10. Banon, the Returners' Leader — 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 (Summon: Brynhildr is one).

When Summon: Brynhildr 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

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

an enchantment it makes cheaper to cast — 3,713 cards in the game can cause this.

1. Mana Matrix — Mana Matrix reduces what Summon: Brynhildr costs

3,712 other cards cause 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 (Summon: Brynhildr is one).

1. Dual Nature — When Summon: Brynhildr leaves the battlefield, Dual Nature exiles a creature

3 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 (Summon: Brynhildr is one).

Summon: Brynhildr fills your graveyard toward the:

1. Havi, the All-Father — 4 or more cards Havi, the All-Father needs
2. Serpent of the Pass — 3 or more cards Serpent of the Pass needs

442 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 (Summon: Brynhildr is one).

1. Shaun, Father of Synths — When Summon: Brynhildr attacks, Shaun, Father of Synths makes a token

157 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 (Summon: Brynhildr is one).

1. Chorale of the Void — When Summon: Brynhildr attacks, Chorale of the Void brings a card back

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

cast a creature — 18,010 cards in the game can cause this.

1. Fiendish Duo — When Fiendish Duo is cast, Summon: Brynhildr grants haste
2. Chandra's Spitfire — When Chandra's Spitfire is cast, Summon: Brynhildr grants haste
3. Wildfire Elemental — When Wildfire Elemental is cast, Summon: Brynhildr grants haste
4. Master of Barbs — When Master of Barbs is cast, Summon: Brynhildr grants haste
5. Sawhorn Nemesis — When Sawhorn Nemesis is cast, Summon: Brynhildr grants haste
6. Goldnight Castigator — When Goldnight Castigator is cast, Summon: Brynhildr grants haste
7. Devilish Valet — When Devilish Valet is cast, Summon: Brynhildr grants haste
8. Ogre Battledriver — When Ogre Battledriver is cast, Summon: Brynhildr grants haste
9. Eldrazi Mimic — When Eldrazi Mimic is cast, Summon: Brynhildr grants haste
10. Sizzling Soloist — When Sizzling Soloist is cast, Summon: Brynhildr grants haste

18,000 other cards cause it too. These are the ones with the most connections.