Next character choice
if you just want damage burst, go warrior they are the kings of pve instance map…they even solo lupi
Not sure how you can notice if someone outdamages you in dungeons.
Personally I have more bad than good experiences with both elementalist and thief full dpsers. They just die horribly easy. However a thief or ele laying down combo fields is just super sweet.
Warrior can do the same and deal massive amounts of damage in the process. I run LB+Hammer warrior myself based around boon duration, power and crit damage. Still with a decent amount of crit chance, 63% or so. You bring alot of might buffs to the group and perma fury, you have massive control and great damage, both single target and AoE.
But I enjoy all my toons and they all do respectable damage. Necro is really fun if you go condi spec, but you just need to make sure your group doesnt have too many condi specced people, otherwise your group will underpreform due to stack limits on bleeds. They also have the awesome boon converters for bosses that get high or long boons like might or retaliation. And then they have a million support based spells aswell for the group.