Guild Wars 2

Not really well up on the changes to Engi, so can you guys give me the name/trait that enables you to use another profession’s skill?

Today I saw an Engi use the guardian’s “Wall of Reflection” and (I think) black powder. I was alone on point with him, so I know there was no one else with him.

Also, I’m seeing some cases where the engi gets near perma stability – maybe an old skill that is now more viable?

The walls mustve come from toss elixir u which makes a random wall at location. And perma stability is from juggernaut trait, which works when you got flamethrower equipped

Elixer U becomes Haste or Frenzy randomly when you drink it.
when thrown it makes wall of reflection or smokescreen randomly.

Elixer X is Rampager or Tordando form on random, plauge or whirlpool underwater.
When thrown it makes an AOE moa transformation for 3 seconds, So that one is actually diferent than the mesmer skill, but does borrow from it.

Also, in general, engineers have access to almost every field and condition in the game. And some of the exceptions like Fear or Torment can be added through sigils and runes. So we can pull off some tricks that are normally associated with other classes, like group stealth and even chaos armor now that we’ve got an ethereal field.

As for the walls, you saw the toolbelt skill for Elixir U:

https://wiki.guildwars2.com/wiki/Toss_Elixir_U

As Penguin suggested, the “perma” stability is likely the Juggernaut Grandmaster trait in Firearms.

Ah, cool. Thanks!