Antigen Swap is a Quirk used by All For One, who stole it from an unknown user.
Description#
Antigen Swap allows the user to change their blood type at will.
Usage#
Throughout his time as a Villain, All For One used this Quirk as a way to never leave any trace of himself behind, allowing him to rule from the shadows without being caught by Heroes or the police.
During his fight with All Might and Stain, he uses this Quirk in tandem with Bloodlet to free himself from the effects of Bloodcurdle.[1]