It reads Strikes the target with cold damage for each increment of Waveform maintained on that target. Waveform stacks up to 5 times.. If you have 1 stack or 5 on the target.. Fluid combination still only hits once.. Its been broken and still is.. For endline this ability does very little damage in its current state.
Yeah, the DPS on this skill is quite underwhelming. Also, Will of the Heavens is still bugged. It isn't curing physical detriments (with AA enhance) from L99+ heroic or raid mobs.