User blog comment:Wrath022/Chapter 517: Wendy Belserion, Review/@comment-24489996-20170115045702/@comment-1776824-20170117155556

If I can just point out that Ban:
 * 1) Snuck up on Melascula, and like others said, was completely undetectable, even to someone like Monspeet.
 * 2) Used Fox Hunt, which is a skill he has had since the beginning of the manga, which allows him to bypass any and all obstructions to steal something, which was in this case, Melascula's hearts.
 * 3) Also has the ability Hunter Fest, which allows him to steal someone's power and add it to his own, until he hits his cap. If Estarossa wasn't there, Ban probably could have kicked some ass due to its nature, as seen when he started kicking the shit out of Galand.

Your comments about Ban are invalid because they aren't asspulls. Ban has demonstrated all abilities he has thus used, except Zero Sign, within the main manga, within the first 100 chapters, since Hunter Fest is just an AoE Physical Hunt. Ban is first and foremost a thief, and has clearly shown that he can steal abilities and powers for quite some time now.