>>30319867>Not realizing the trick with AriadosNo one takes Ariados seriously, that's what he's counting on. So while you sit there sending out one of your lower level shitters, not really concerned about it, maybe he surprises you and hits you with Fell Stinger (Which has been buffed to 50BP this gen), gets the KO, and gets +3 attack.
Then you're facing a Lv30 monster with 238ATK (It has 31IVs, 252EVs, and an Adamant nature), Shadow Sneak, and Sucker Punch, and a STAB bug move. Oh, and god help you if it gets another KO with Fell Stinger and hits 382ATK.