I personally really like the idea of a new trait "Tree" system, versus the current trait system. WoW had a "Tree" type system that worked for years. They recently changed it to that of a line and it has received a lot of negative feedback. Tree's allow for a much larger amount of benefits per trait type. For example, one could use 2 yellow and 5 red as a champion. This really doesn't leave many options for traits. Whereas a tree, you may be given 50 points, and you can get 50 smaller benefits. Or you could go 25 yellow, 25 red. etc. A tree allows for a much larger span of options to customize your character.