User blog comment:Don7/Blackbeard-Ultimate ability/@comment-4754162-20130305041207

Theoratically is correct, practically nope, should be some handicap somewhere.

Take Marco for example, theoratically his Myth Zoan should be overpowered and complete pawnage! He can fly, he has super strength (usual Zoan's attribute), he can be intangible, he has regenerative abilities and he has haki. If you temporarily block out Marineford war events from memory, won't you agree he is overpowered. However, practically he did not dominate the warfare at Marineford at all despite of all his abilities stated.

BB, at the moment, gives (me) the same feeling of "theoratically overpowered". Just how he perform in a battle / war is yet unknown, thus not much further comment beyond that.