Guild Wars 2

How do they work do they affect the target that is shot at and do the positive effect affect the user as well ?

Example: combo finisher of light removes self conditions or only allies in the way of the projectile?

I have always wondered the same thing.

I believe in the specific example you have given, it removes conditions from yourself.

From http://wiki.guildwars2.com/wiki/Combo:

“Projectile Finishers apply their effect either to the target foe or to allies adjacent to the target.”