Many things make gw2 combat system fairly unique and fast paced. One of them is the extensive use of both animations and visual effects to immediately convey what your opponent is doing, so that other players can react accordingly.
Some attacks follow this concept and have some clear visual cues about what's happening. Some other skills, however, don't really catch much the attention considering how impactful they are.
Can we get some work on that? There's no need to nerf or buff anything, sometimes even just being able to immediately know what's going on makes the game more balanced.
** EXAMPLES OF THINGS THAT WORK WELL
** EXAMPLES OF THINGS THAT DON'T WORK AS WELL
** EXAMPLES OF SKILLS THAT ARE ALMOST GOOD
Now, these are just examples. There are more skills that could use the same treatment (and some others that have a visual effect much more visible than their impact would imply), feel free to add me whatever I may be forgetting (or correct me if I'm wrong)