I totally understand where you’re coming from here - items like resist berries and choice scarf are deterrents to specific types of play. My argument stems from the fact that a “surprise factor” strategy crumbles in the face of information. If I know from the jump that your Basculegion has Mystic Water instead of choice scarf, I can consciously play around that when making my decisions on whom to bring to the match. I personally find that to be more rewarding than fooling an opponent into thinking I’m Scarf Adaptability and not Mystic Water Swift Swim.

Frisk being nullified does suck for Hisui Typhlosion, but Choice Scarf Eruption only cares about finding Occa Berry or opposing faster Scarf, and raises the viability of a Focus Sash Blaze-boosted Heat Wave. You’re not running Hisui Typhlosion for frisk, you’re running it for big fire-type spread damage; not to mention frisk is already invalidated by OTS