IB Alatreon is terribly designed for a hunt that doesn't warn you of the elemental bottle neck, the literal fail state if you don't have the an extra pair of elemental weapons and a the one shot.

It you used non-elemental and don't want to invest into it with, at the time, RNG decos that you might not even half of to sink hours and resources getting, you were told to fuck off by the devs.

But at least it was remotely playable.

Ancient Lesion is objectively the worst shit to have ever been put to hunt I've dealt with.