Talk:Reversal of Fortune

Does anybody have scientific analysis of the recent change to this skill. I used to use ProtSpirit, get backfired, then use Reversal of Fortune to heal myself, as Reversal undid the maximum damage (about 65) and prot spirit limited backfire damage to about 45. However in the dying moments of 2005 it seemed to become that Reversal no longer triggers backfire, and backfire no longer triggers reversal of fortune.

If RoF is left on a target without them taking damage, will it stay on them indefinately, or is there a time limit on how long it will stay before wearing off? In the skill description, there is not mention of this, just "the next time target ally would take damage."