I understand why it is so expensive to buy gems, the reason is, if they're too cheap, most of people could get powerful edge compared to other people. So it is good that people are not getting huge edge between others.
Second thing I was thinking,
is that you should have "Hero"
that haves it's own level and equipment. ( This feature is in many games, but I won't see it as copying )
You know, if there is those "botters" that all may attack same time on faction. There should be some kind 'o "locking" that should be unlocked with few words (ie. type "Attack" "Start Engaging"{etc}).
Survived thru Level 43 in Survival WITH ->
Conjuner,
Ranger,
Mage, &
Warrior. My tip is that you need to wear Warrior with best gear that is possible.
And I placed charecters/classes like this Top Middle Warrior, Bottom Middle Mage, Bottom Left Conjuner, Bottom Right Ranger.
And used all the buffs to get best possible % to survive.
A Great Idea would be that if you would be able to mount some kind of animals, horse , unicorn and so on ? [+] if you agree with me, [-] if you disagree with me.