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#569Blood Oath"Bleed me dry"Familiar
Spawns a familiar that follows Isaac and stabs him at the beginning of the each floor if he has more than half a red heart.

The familiar will drain as much red hearts as possible without killing Isaac, ultimately leaving him at half a red heart, or no red hearts at all if he has other types of hearts that will keep him alive.

When stabbed, Isaac gains increased stats for the rest of the floor: +0.15 × HeartsLost ^ 2 worth of damage, and +0.1 × HeartsLost worth of speed.

Even though a single stab animation, every bit of damage taken is treated separately per half a heart lost, which can lead to synergies with some items.


- Tags -- Synergies - - Links -

▾ITEMS ()▾

D infinity Dogma Jar of Wisps Flip Everything Jar

▾TRINKETS ()▾


▾PICKUPS ()▾

Heart Heart (half) Heart (soul) Heart (eternal) Heart (double) Black Heart Gold Heart Heart (half soul) Scared Heart Blended Heart Bone Heart Rotten Heart Penny Nickel Dime Double Penny Lucky Penny Sticky Nickel Golden Penny Key Golden Key Key Ring Charged Key Golden Bomb Golden Troll Bomb Giga Bomb Mega Chest Mom's Chest Mega Battery Golden Battery

▾CONSUMABLES ()▾

Hagalaz Jera Ehwaz Dagaz Ansuz Perthro Berkano Algiz Golden Pill Golden Horse Pill


▾MACHINES/BEGGARS ()▾

Slot Machine Blood Donation Machine Fortune Telling Machine Beggar Devil Beggar Shell Game Key Master Donation Machine Bomb Bum Shop Restock Machine Greed Donation Machine Mom's Dressing Table Battery Bum Hell Game Crane Game Confessional Rotten Beggar

▾CHARACTERS ()▾

Magdalene Samson Azazel Lilith Bethany Tainted Magdalene Tainted Eve Tainted Lazarus Tainted Lilith Tainted Bethany

▾TRANSFORMATIONS ()▾

Fun Guy Conjoined Leviathan

▾CURSES ()▾




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Added in DLC
Unlockable Grants costume Has YouTube video Animated icon