meaning of "number of targets"
That is just the number of things that skill can hit. If you have 5 people standing next to a door the skill might hit the 5 people and ignore the door or hit the door and 4 of the people.
If it was a multi hit skill the tooltip would show a number with x next to the damage like “Damage (8x): ..” for Ghastly Claws.
the combat log does not seem so accurate as of lately. There has been two occasions in WvW roaming where I have been at either half health or slightly greater and I have been downed by some magical force. I go back and look at my log (all 1 million lines) and the last damage done prior to down-state was for maybe 2k…yet my health was around 10-12k. It makes no sense.
I know at one time things like life steal or leaching wasn’t accurately showing and I know lag has become a problem in WvW lately but the gross disproportion of what is showing does not match up.