The concept is very captivating, I immediately wanted to try it when I first saw it in the therad.
I got mud rank at about 500 seconds, after 3 tries.
The targeting is very noob hostile. When you get used to hotkeys it's fine, but when you're still starting it's more natural to click everything with mouse. This caused me to constantly use spells on wrong targets because my mouse hovered over tiny bit of another character's name plate.
The fact you can't select enemy using mouse is very counter intuitive.
I think player should have health orb , not name plate like rest of characters.. Obviously there are 4 name plates for 4 characters, but having a mana orb without health orbs made me think player is immune to damage or something.