So are we going to make guild CodeX or what?
Ah that would be SO cool! The game is a little dumb right now in that you are stuck inside the server they stick you in. You have the option to 'switch' server (which mean you start from scratch all over again), or to 'migrate' server (which is what we need to simply change servers). Unfortunately the option to migrate server isn't available yet. I think that you are only able to join a guild in your server. Kinda dumb.
What's the best way to get gems? The arena is good at the beggining, but now my rank is too high to get a decent amount of gems
The arena with continue to give you gems at the end of each day. You can farm gems by using the 'booty cave' (unlocked at lvl 55 i think- and it's a very slow gain), or you can buy the monthly card which will give you like 120 gems each day.
I feel that the gems are way to over priced. I probably buy 10 gold chests every 2 or 3 weeks (thats with the monthly card). I have a soap box about paying for virtual currency lol.
Every time you buy a 10 pack though, you are guaranteed to get at least one 3* hero (which could be awesome, or a dud). The very first gold chest you buy with give you a 3* hero as well (you should do it if you have the gems).