L2 and L2 Shop Pay for Win ? or not ?

Hello i have a question about this new Adenian tatto and underwear, those item are neccesary ? or not ? is a "must" items In pvp ? the game is fun but i'm not sure about the Cash items, look pretty op, maybe i'm wrong if anyone can tell me if i rly need purchase those

Adenian Tattoos and Underwear xD