It seems like Billy's the only one getting any synergy from WV lmao. But who knows, maybe they'll take Darkhold out of the vault and it ends up being Wanda and Tommy bonding time (especially since Orlando hinted at some sort of CC inspiration for the series).
On another note, I was reading through the Wanda thread and it made me think, has anyone taught Billy anything magic related besides Loki? I know Strange approached him a long time ago, but I don't think we've ever seen him get mentored besides Loki in V2?? I can't even remember if Wanda's even off handedly talked about helping him, besides that one New Avengers moment where she gives him a pep talk.