I figured different skills would stack, but what about a double hit with one skill. Do you only get the initial damage twice but roughly the same amount of DOT as one hit (keeping in mind the first DOT would do some damage before the second application of the skill). Or, do we also get twice the DOT damage also?
I haven't checked this but I would be very surprised if the same ability stack. My assumption is that the second application will replace the existing dot with a longer duration.