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The Binding of Isaac: Antibirth Wiki
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== Strategy == * You must be very good at dodging to survive the meantime you are refilling health or get lucky with protective items like the [[boir:Holy_Mantle|Holy Mantle]], [[Bot Fly]], [[Saturnus]], and orbitals like [[boir:Big_Fan|Big Fan]], [[Tinytoma]] and [[boir:Cube_of_Meat|Cube of Meat]]. * Health up items increases not only the maximum amount of hits you can receive but also grants more bonuses from Blood Oath. ** Items which regains health like [[boir:Placenta|Placenta]]<nowiki/> and [[boir:Leech|Leech]]. **Another Blood bag will fill you five hearths and add another one, but unless you got some invincibility, it would be hard to get from the Donation machines and you may get the [[boir:IV_Bag|IV bag]] instead. **[[boir:Yum_Heart|Yum Heart]] will exchange two soul hearts for one red health, making it useful as a last resort to regain health at the cost of the Book of Belial. **[[boir:Dark_Bum|Dark Bum]] will turn red hearts to soul hearts, meaning more charges, but if you aren't fast enough he will leave you without any health to work with * At least at the run's start, you should avoid deals with the Devil since the less red health you have, the less the Blood Oath rewards you and you can receive fewer hits before dying; and the rewards in soul/black hearts won't be that helpful unless you change the Book for a more spammable item like [[boir:Tammy's_Head|Tammy's Head]] * Since Book of Belial uses three charges instead of the regular two from the [[Book Of Virtues|Book of Virtues]], you may be cautious about how many soul/black hearts you have and will spend on activating the item (One heart equals two charges, so you need one and a half soul hearts to activate it in case the item charge is depleted). ** Note that the damage increase can be activated again in the same room, but will be lower than the first. **[[boir:9_Volt|9 Volt]] will save you a charge and lower the cost to one heart. *Except for the increase in range, you won't find Anemic very useful unless you got a lot of health afterward or use the [[Voodoo Pin|Voodoo pin]]. *Avoid [[Magic Skin]] since it will sacrifice a health slot you may want and will replace items afterward with itself which could be health, damage, or speed upgrades. *Luck stat implies more pickups chances on clearing floors and opening chests and more pickups means more chances for red hearts to spawn so items that increase luck are good.
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