Betrayal

Betrayal is an unlockable passive item added to the Afterbirth DLC for The Binding of Isaac: Rebirth. It is a blood-stained dagger with a red-colored handle.

It is unlocked after defeating Hush as Judas.

Effects

Isaac appears to have a dagger stabbed into his back.

When taking damage, all enemies from the room are charmed.

Items
Passive Items
<3 • 20/20 • 3 Dollar Bill • 8 Inch Nails • 9 Volt • Abaddon • Anemic • Ankh • Anti-Gravity • Aquarius • Aries • Athame • Ball of Tar • The Battery • The Belt • Best Friends Forever • Betrayal • Binky • The Black Bean • Black Candle • Black Lotus • Black Powder • Blood Bag • Blood Clot • Blood of The Martyr • Bloody Lust • Blue Cap • Blue Map • Bobby-Bomb • Bob's Curse • The Body • Bogo Bombs • Bomber Boy • Boom! • Box • Brimstone • Bucket Of Lard • Bursting Sack • Butt Bombs • Caffeine Pill • Cain's Other Eye • Cambion Conception • Capricorn • Car Battery • Cat-O-Nine-Tails • Celtic Cross • Censer • Ceremonial Robes • Champion Belt • Chaos • Charm Of The Vampire • Chemical Peel • Chocolate Milk • Circle of Protection • The Common Cold • The Compass • Continuum • Contract From Below • Crack Jacks • Cricket's Body • Cricket's Head • Crown of Light • Cupid's Arrow • Cursed Eye • Curse of the Tower • Daddy Longlegs • Dark Matter • Dead Dove • Dead Eye • Dead Onion • Death's Touch • Deep Pockets • A Dollar • Dr. Fetus • E Coli • Eden's Blessings • Empty Vessel • Epic Fetus • Epiphora • Eve's Mascara • Evil Eye • Experimental Treatment • Explosivo • Fanny Pack • Fate • Fruit Cake • GB Bug • Gimpy • Glitter Bombs • Gnawed Leaf • Godhead • God's Flesh • Goat Head • Growth Hormones • Guillotine • Guppy's Collar • Guppy's Tail • Habit • The Halo • Head Of The Keeper • Hive Mind • Holy Grail • Holy Light! • Holy Mantle • Holy Water • Hot Bombs • Humbling Bundle • Immaculate Conception • Infamy • Infestation • Infestation 2 • The Inner Eye • IPECAC • Iron Bar • Isaac's Heart • Jesus Juice • Judas' Shadow • Juicy Sack • Kidney Stone • The Ladder • Latch Key • Lazarus' Rags • Leo • Libra • Little Baggy • Loki's Horns • Lord Of The Pit • Lost Contact • Lucky Foot • The Ludovico Technique • A Lump of Coal • Lusty Blood • Maggy's Bow • Magic 8 Ball • Magic Mushroom • Magic Scab • Magneto • The Mark • Marked • Match Book • Maw of the Void • MEAT! • Midas' Touch • The Mind • Mini Mush • Missing Page 2 • Missing No. • Mitre • Mom's Coin Purse • Mom's Contacts • Mom's Eye • Mom's Eyeshadow • Mom's Heels • Mom's Key • Mom's Knife • Mom's Lipstick • Mom's Pearls • Mom's Perfume • Mom's Purse • Mom's Underwear • Mom's Wig • Money = Power • Monstro's Lung • More Options • Mr. Dolly • Mr. Mega • The Mulligan • Mutant Spider • Mysterious Liquid • My Reflection • My Shadow • Night Light • No. 2 • Number One • Odd Mushroom (Large) • Odd Mushroom (Thin) • Old Bandage • Ouija Board • The Pact • Pageant Boy • The Parasite • Pay To Play • Pentagram • PHD • Piggy Bank • Pisces • Placenta • Proptosis • Pupula Duplex • Purity • Pyromaniac • A Quarter • Raw Liver • Restock • Roid Rage • Rosary • Rubber Cement • Sack Head • Sacred Heart • Sad Bombs • The Sad Onion • Safety Pin • Sagittarius • Samson's Chains • Scapular • Scatter Bombs • Scorpio • Screw • Serpent's Kiss • Sharp Plug • Skatole • Skeleton Key • The Small Rock • SMB Super Fan! • Soy Milk • The Soul • Spear of Destiny • Speed Ball • Spelunker Hat • Spider Baby • Spider's Bite • Spirit Of The Night • Spoon Bender • Squeezy • Starter Deck • Steam Sale • Stem Cells • Steven • Sticky Bombs • Stigmata • Stop Watch • Strange Attractor • Super Bandage • Synthoil • Taurus • Tech X • Technology • Technology 2 • Technology .5 • The Negative • The Polariod • There's Options • Thunder Thighs • Tiny Planet • Tooth Picks • Tough Love • Toxic Shock • Tractor Beam • Transcendence • Treasure Map • Trinity Shield • Virgo • The Virus • The Wafer • Whore Of Babylon • Wire Coat Hanger! • The Wiz • Wooden Spoon • XRay Vision • Zodiac
Activated Items
Anarchist Cookbook • The Bean • Best Friend • The Bible • Blank Card • Blood Rights • Bob's Rotten Head • The Book of Belial • Book Of Revelations • Book of Secrets • Book of Shadows • The Book Of Sin • The Boomerange • Box of Friends • Box of Spiders • Breath Of Life • Butter Bean • The Candle • Converter • Crack The Sky • Crystal Ball • D7 • D8 • D10 • D12 • D100 • D20 • D4 • Dad's Key • Dead Sea Scrolls • Deck Of Cards • The Dice • Diplopia • Doctor's Remote • Flush! • Forget Me Now • Friendly Ball • The Gamekid • Glass Cannon • Glowing Hour Glass • Guppy's Head • Guppy's Paw • Head of Krampus • The Hourglass • How To Jump • Isaac's Tears • IV Bag • The Jar • Jar of Flies • Kamikaze! • Kidney Bean • Lemon Mishap • Magic Fingers • Mega Bean • Mega Blast • Mine Crafter • Mom's Bottle of Pills • Mom's Box • Mom's Bra • Mom's Pad • Monster Manual • Mr. Boom • My Little Unicorn • The Nail • The Necronomicon • Notched Axe • Pandora's Box • The Pinking Shears • Placebo • The Poop • Portable Slot • Polyphemus • Prayer Card • Razor Blade • Red Candle • Remote Detonator • Satanic Bible • Shoop Da Whoop! • Scissors • Spider Butt • Tammy's Head • Tear Detonator • Teleport! • Teleport 2.0 • Telepathy For Dummies • Undefined • Unicorn Stump • Ventricle Razor • White Pony • Wooden Nickel • Yum Heart
Familiars
???'s Only Friend • 1UP • Abel • Ball of Bandages • Best Bud • Big Chubby • Big Fan • Bob's Brain • Bomb Bag • Brother Bobby • Bumbo • Bum Friend • Charged Baby • Cube of Meat • Dark Bum • Dead Bird • Dead Cat • Distant Admiration • Demon Baby • Farting Baby • Fate's Reward • Finger! • Forever Alone • Friend Zone • Gemini • Ghost Baby • Guardian Angel • Guppy's Hair Ball • Halo of Flies • Harlequin Baby • Headless Baby • Host Hat • Incubus • Key Bum • Key Piece 1 • Key Piece 2 • Lil' Brimstone • Lil' Chest • Lil Gurdy • Lil' Loki • Little C.H.A.D. • Little Chubby • Little Gish • Little Steve • Lost Fly • Milk! • Mongo Baby • Multidimensional Baby • Mystery Sack • Obsessed Fan • Papa Fly • The Peeper • Punching Bag • Rainbow Baby • The Relic • Robo-Baby • Robo-Baby 2.0 • Rotten Baby • Rune Bag • Sack Of Pennies • Sacrificial Dagger • Seraphim • Sissy Longlegs • Sister Maggy • Smart Fly • Spider Mod • Succubus • Sworn Protector
Health Items
A Snack • Breakfast • Dessert • Dinner • Lunch

FANDOM

Effects