Invaluable PVEr
As a rather addicted PvEr, here’s some situations in addition to CM and Dredge:
1. Arah in general. Shadow Refuge + Smoke Screen allows for the best survival skips of your party members. Used most often in p1 and p2, with some mileage in p3 as well.
2. Arah Orb carrying part. Shadow Trap allows you to travel most of the distance and I believe a thief can solo it with the right timing. But even without, you just have to pass to one other person. Thief in this scenario is pretty much playing the roll of the Mesmer with the portal.
3. Pretty much any situation where you’re facing group of mobs. This isn’t “gamebreaking”, but perma-blind field pretty much means your party members will rarely get hit in these fights. The most mileage I find is in CoE, where you’re facing the Elite Berserkers and Wolves and Golems which typically hit like a truckload, but with a smoke field from Black Powder, your party members significantly take less damage. I’ve done my share of CoE to know that people do drop quite often since the Elites do burst pretty quickly.
4. Aside from an ele fgs, Thief has one of highest burst for the CoFp1 gate fight, usually taking 2-3 seconds to down the gate control.