Competitive battling is a piece of cake! But yes, it'll take some time to learn the concepts and master some strategies, but you'll get there! I'll be more than happy to help you out with some competitive battling aspects, or as said, you can check out the Battling & Team Battling too. C:
Daw, and Heart Gold is truly amazing - kudos for liking it too! I really love this remake of the G/S/C games, in which it feels so nostalgic, playing upon the Johto region and such. I hope that you'll get to enjoy the games that will come out soon, like ORAS! The remakes of the 3rd Gen. <33
Well, as said, this Dragon doesn't bite, so, feel free to ask me any question, or address any concern! I'll be happy to help! And have a looovely stay, pal! Glad to have you here with us. :3