During these days i was thinking and I thought that could have achievements in GW2 for some dungeons and other bosses of the world. These achievements would be related to the skills of these bosses and player skill. For example:
“Defeat Zahitan without taking damage of Mortal Strike”
“Defeat the Spider Queen without being a victim of its venom more than 3 times”
(the name of the skills are invented).
I think this would give another challenge to the dungeons and world bosses.
Sorry for my English and Thanks!