Oh.
Anyways, Calamitas tries to Danmaku him with intangible Lifedrain bullets, he'll just whip out Pandora and gun every single one down. Even if some hit, as seen in DMC 3, he's just fine with getting his life sapped from him, and this is of course when he was only High 7-C. And, for every hit he makes, time is going to slow down significantly, leaving Calamitas wide open to get diced up. Dante is extremely above baseline High 6-A, although I don't really know where Calamitas stands there, so it will be easy to do severe damage and probably kill Calamitas.