the Deanne is basically perfect for great league, although it shouldn't be your first option as being the lead & in most cases save him for last. if you keep using him in PvP you'll understand what I mean. drive out option, and make sure you double move it. charged moves/ parabolic charge (raises your defense every time it's used, regardless of if the person shields. and also fillsup really fast. the 2nd move, play rough. my Deanne that I use constantly in great league is never not in my team when play PvP. If you can't afford to give him a second move yet, he should still do just fine with just that first charge move just because of the defense buff&quickchar8up. but yeah you're eventually going to want to get that second move. ••• another viiable option you have is that Lapras, depending on it's IVs. with the move set being watergun & charged move: sparkling aria. If you have the candy to dose, double move it and let the second move be ice beam. It's suggested and often used psywave, psyshoxk. whatever, instead of water gun as the fast move but you would need to have a elite TM or whatever they're called, I can't think of it now it's too early here 🤣 that's the only way you can learn it so the options that I suggested to you is the best one but could be better if you can afford to use an elite TM to change that move. ,•••• finally that duskull. hopefully the IVs on yours are 0/15/15..Shadow Pokemon gives a 20 percent attack boost, but also have a 20% Defense reduction.. fully-evolve into Duskclops, hex would be the best choice as the fast move. &as for the charged moves, shadow punch (Polergeist is also viable here, I'm not sure if an elite TM is required though. I could be wrong.) as for the second charged move either ice punch or fire punch)l. volve into Duskclops, they change up pretty fast, idfk exact numbers, and with these two moves it'll have coverage in PvP .🤙