I'm kind of torn on Dragalge. On one hand, it's arguably the hardest thing to switch into in the tier due to the raw power of its Specs set with Adaptability factored in. Only the bulkiest of steel types such as specially defensive Registeel and Bronzong dare to switch into it, and both can be worn down due to a lack of reliable recovery. The sheer ease of 1HKO'ing and 2HKO'ing the entire tier is ridiculous; even things like Cresselia and Alomomola have to be wary of its raw power. It's also not particularly frail either, since 65/90/123 bulk is pretty respectable, and its typing has merits as well. Being one of the few dragon types neutral to Fairy and who can in turn crap on any fairy is a nice aspect, and of course it resists the FWG core, in addition to things like Fighting, Bug, and Electric. On the other hand, its speed holds it back considerably. With a pitiful base 44 speed tier, while it can 2HKO most of the tier, it usually has to eat an attack from anything that it doesn't 1HKO, and many things can check it pretty easily as well. Much like Aegislash, that speed makes it sort of a gray area; while it undeniably has power and bulk, that low speed prevents it from sweeping entire teams itself. It's not like Greninja whose speed required more specialized checks (i.e., Scarfers and priority); Dragalge sits pretty low in the RU speed tiers. That said, it can break down walls like nobody's business, making it very easy for a faster Pokemon to clean up after it. I would not be surprised if it got banned, but I'm also not 100% sure that it NEEDS to be banned. I'd lean more towards pro-ban than no-ban, though.