Guild Wars 2

This one about sneaking when chasing. I figured out i need to use somehow the purple crystal, but it appears only for few second – and never replenishes. W. T. F. am i supposed to repeat it over and over and over just to find the good spot? rly? :/ please ANet…
and the asuras – what am i supposed to do? kill the golems before they reach the force field?

for the oppertunity achievement, yes there is only one crystal and one charge for a reason. But right now you can quickly take the portal kasmeer drops, and still hit the boss in time for it to count.

As for the dash advantage achievement, yes you have to kill the golem first or it walks through that force field, causing you to fail. ( http://www.youtube.com/watch?v=eG4wFFtcYKw )