i completely agree that some features of the Chakra system makes the recourse itself uninteresting. its only uses are two oGCD abilities and one of them does not share as much use as the other.

it should have been modified to be similar to other DPS resources presented in 4.0. perhaps add statistical buffs depending on the amount of chakra you currently have?

i would also like it if there where more than two ways to obtain the recourse. similar to what you have suggested, Arm of the Destroyer looks like a meditation animation, so why not give the player chakra upon its use? another good idea would be allowing the player to build up Greased lightning then trade it for chakra (1 level=1 chakra) and vise-versa.