Why do so many attacks make you invulerable?
I can appreciate what you mean in regards to these abilites however this is part of the situational awareness in PvP for GW2. By this i mean if you see a Mesmer use Blurred frenzy, which is the the 2 skill on MH Sword it grants distortion which is a invunerability to damage (however does not avoid DoT’s).
You are not meant to stand there and wait for the mesmer to finish the attack before resume attacking try smacking his team mate a while and then switch back to the mesmer. Same goes with the thief which has alot of evasive/offensive skills like LDB, Infiltartor’s strike, Pistol whip if you see one using these abilities rather staying on the offensive so semi-defensive still they have burnt there cooldowns and then resume on the offensive and put the pressure back onto them. Spvp is very much like tennis alot of the times but a thing that people need to learn and will learn over time playing this game (even myself i’m still in the process of learning this game) is that your cooldowns are not there to be spammed every time it’s up.
This game is based around observing your oppenent to see them waste thier precious cooldowns then using yours with the 100% certainty that they cannot mitiagte that damage to secure a kill.
hope this helps
-Infi-
http://www.twitch.tv/infintitus
https://twitter.com/infinitustv -[Desolation EU]
For some attacks I agree they could have made the evasion or distortion effects more visually obvious.