it's not a "type", it's kind of an universal blood, it has both proteins A and B but something makes it also O-type compatible, over the years its healing proprieties had changed, from faster healing through transfusion to use it as starting point to a drug to heal cancer. It also can be used to clone him.
Fictional.
Metallo
justin bieber
No, they're totally unrelated. Superman and Batman are in no way blood related. They are, however, great friends.
Clark Kent.
Supermans tights are red.
Fictional.
Krypton
Darksied
Steel
Metallo
justin bieber
No, they're totally unrelated. Superman and Batman are in no way blood related. They are, however, great friends.
The same as supermans
Clark Kent.
Planet of Krypton
Supermans birthplace