I got this combat message, but it might very well be due to the Blood of the Ancients effect… which is odd, because it did not seem to effect Voice of Wrath.
"For a moment, stars seem to whirl overhead in complex patterns. Twisted light of a color you can't quite name lances down to strike the Bum, dealing 47 damage."
Crystal Gate / Discussion
This is the discussion related to the wiki page Crystal Gate.