Brodter

Hello there, new to the Aden server. I am curious how I can get C, B, A weapons/armours and so on. Back in the day we could buy them from players, shops, or got them from quests. I am now level 50 and still using my D grade gear. Did I miss it something? I checked the L2 Store and it doesn't seem like thats where I buy items from either. Also, what is this Magic Lamp 10/300 thing? Also, what is this crafting stuff now? It seems like I am leveling crafting but I haven't crafted anything. Also, what are these Fire Earth Water Wind spirits? Do I need to level some how? Thank you for the replies.