There's really not that much to know, just learn how to block and slash when necessary. Stick to one set so you could lvl faster. Take advantage of dungeon quests that give a lot of chests for more code and eles.
what is community room im new to the game just started today
You could see it when you click on an open room (one that isn't occupied). There will be 4 different modes ( I don't know them off the top of my head, but look for the "Community" room. Plus if you just started today..it might take you a few days to lvl (or even buy) a card.