Stantler finally received an evolution with Wyrdeer, which is a very welcome addition. Hopefully Stantler and Wyrdeer will receive a new Fighting type coverage move after the loss of Jump Kick, since I assume that it won't return in PL:A. Close Combat is a plausible candidate, considering its wider distribution in SwSh and how Xerneas is able to learn it.
As for other good physical Ghost type move options, I reckon Poltergeist might be off-limits to Basculegion. If Dragapult couldn't learn it, then I struggle to see how Basculegion would be able to.
Makes me wonder if Basculegion will get a new move that's a ghost-type Double-Edge. Which would fit the flavour established with Basculin, but may be too busted with Basculegion if it keeps Rock Head/Reckless/Adaptability.Basculegion is downright scary in terms of its battle prowess, under the assumption that it's both faster and a stronger than Basculin. The original mon is already way more powerful than most people would think IMO and an evolution that improves on that should be pretty dang strong. Depends on if they gave it a physical Ghost move that's not Phantom Force. Just want to say too that this is one of the best interpretations of the Ghost-type I've seen in a while.
As for other good physical Ghost type move options, I reckon Poltergeist might be off-limits to Basculegion. If Dragapult couldn't learn it, then I struggle to see how Basculegion would be able to.