User blog comment:Koishi-Komeiji/Holy Mami/@comment-38196594-20190812134054/@comment-24965192-20190812143317

No, she's being controlled by a rumor to "liberate" magical girls. Rumors are not good (mega spoiler): It's a good cause, but the execution is questionable.

Umm, Holy Mami's NP is AoE. And, no she wouldn't deal that high damage as you would think since she's an Alter Ego. Alter Ego needs something else to compensate for their class weaknesses, and most often than not, high damage output is the way to go.