Talk:Witch Beatrice/@comment-24.111.246.199-20140718225325/@comment-4511886-20140719133612

It's because all her damage is magical, which the Four Kings resist most of all elemental damage. She still works against the Moonlight Butterfly due to her extreme damage output, which more or less nullifies the butterfly's high magic defense.

She's not necessarily bad. She's just not as good as other summons, which generally destroy the boss in one way or another. (Through tanking, damage or both.)