No, a person can only have one Devil's fruit ability. This was mentioned in the Ennis Tower Arch of One Piece. Something about "the devil's fighting" or mixing inside them. It would be incredibly OP if that was true. We'll just have to wait to see how the plot twist goes.
Oh yeah I forgot about him, that's true. You're clever. Although so far Black Beard is the first and only with two devil fruit abilities. However if they start introducing the two devil fruit thing with Law and make it become more common, I feel that it will loose a lot of purpose. The issue with Black Beard has not been explained yet, so no need to be confused, you didn't miss anything.
No Marco, from the white beard pirates said that black beard has an "a typical body structure" or something
i think when him in the room, he can do anything like when he sent a message to chopper when luffy and tragay got caught.. telephaty is possible too
its because his "D." people with "D." have a power to against god..
no, the devil fruil that can absord other devil fruit powers is yami yami no mi and if people with "D." (with typical body structure) ate the yami yami no mi, he can have two devil fruit.. jinbe had said "luffy you must careful because blackbeard search people with strong devil fruit" (fishmen island arc) that means blackbeard can have more than two devil fruit power..
Is it possible that he has Corazons ability to? the one that can shut out sound?
Cause when a devil fruit user die the fruit comes back right? And Law is using it now so that only Luffy can hear him talk?