Forum:Everything's so new...

So I've kinda stopped playing for a while after the GX generation because I thought the Synchrons are a tad bit 'over-powered' =_= And heck without me noticing, now there's Xyz and everything. Can somebody help a brother out and fill me in with the latest details? I'm not saying I need explaination about them, that's what this wiki exist for. I'm just curious if there's any 'unique' cards that can be considered essential or any relevant information I should know. I'm thinking of getting back in the game and go off to the Dueling Network but I dunno where to start :/ Thnx in advance!