Board Thread:Questions and Answers/@comment-182.55.95.39-20170813134636/@comment-78.194.252.210-20170814090335

Technically he would reduce Excalibur, as he did for Clarent. The major (the ++) need conditions. And unlike god hand, it's not only an immunity but a protection. So if Hera take full damage of Exca, it's not his case.