Well, Dabbit said that doing jD works pretty well, I guess doing some fakeouts followed by a 3C could work too, but I don't know much, the barrier disappears after Haku gets hit right? I once got killed by that thing after Hakumen slashed my fucking laser super once, shit sucked .
I think he meant that you should do ye olde taunt, 2BBBBBBBBBBBBBBBBBBBBBB.