I have a couple (possibly stupid) questions…

Is there a reason that sometimes I have to hit a spell multiple times for it to cast? Additionally, I find to ensure movement, I have to roll, because left clicking is unreliable during fights.

How does primordial essence replenish (other than shrines) Is it killing mobs?

What is the significance in chest colors (red, blue, yellow, white..) Is there any difference in them?

In D3 I am familiar with what GR means, but in this game people keep referring to GR 100.. etc, but I don’t see where this corresponds in the game. When I do an expedition, it just says Adept or Veteran.

Do I want resistance or force field for mage? Spell dmg or crit damage?

Thanks in advance,
Chief Happiness Officer