Roselia DP, not SW. SW Roselia does nothing except auto sleep OR 10 damage. Terrible basic (especially since you usually want to play it as a Stage 1 for Roseraid DP to be able to hit the bench)
About roselia... You still have energy being a pain in the rear. You're VERY vulnerable against Magmortar decks and the like, as they'll smash everything into oblivion. You're very weak against speed decks.
But you get a free amazing starter (well... Almost. It's about 10 HP too low to be borderline good, and 20 too low to be standard, unlike something such as Stantler), and you get an almost good stage 2 Roseraid (It would be great, assuming you can get energy onto it... Not sure HOW that'll happen, as you're using Budew's search ability and pulling all sorts of other crazy stunts. ALSO assuming the rather low 90 HP isn't donked by Bannette + Pluspower or anything like that...)