What is the worst or most useless power right now?

Flamethrower on the Krogan Merc strikes me as particular bad. He doesn't even have Turbo Charge to make him worthwhile...

Lance is good, just not on all characters.

No cooldown lance evo on asari adept is very good. Just did 3 gold pug runs with that build. All sub 20 min games, all 22k+ scores, all biotic medals. Not that score or medals matter, but its just to show that biotic damage exists and that I didn't just kill with shotgun. For all those saying biotic damage is non existent.

I agree with flamethrower though. Dont really get that power.

WHAAAAT?! Flamethrower is crazy powerful. Its not as fun as it was on my Vorcha, but it melts armour like nobodys business.

It only feels redundant now people have weapons that can take out a Krogan in 2 or 3 shots..

As for Lance - spec for weak spots and its great against special units, you can make it shield powered too if you want to be able to spam it between cooldowns. Even better - the human kineticists special ascension means you can spam the hell out of it, combined with her efficient ascension and shield restore on biotic kills perks.

It all depends on how youve been using your kits. For me, Flak Cannon feels the most useless - but then I havent really levelled it up as Turbocharge and Incinerate etc took preference. Im sure that a build based around it it could be good - The trip mine and sticky grenades just seem far superior in comparison.

All this said - ive taken none of these to gold, so take it with a pinch of salt.

Flamethrower is definately worse than in me3 but to call it the worst power seems like a big exaggaration, it's one of the less bad ones imo.  Flak cannon for one is arguably worse on the same character. Flamethrower does ok damage on a short cooldown. Against groups of red bars its good dps, against bigger enemies you can take blinding heat and debuff their damage for 7.5 seconds and  apply a burn dot, that's not bad. Incinerate is arguably worse, it's only benefit is that it staggers, it does almost no damage even specced for max armor damage. .Lance also seems pretty bad. A real shame that they gave that to every asari.

I'm going with flak cannon. Either it is very difficult to use or it's just bad. Seems like it has some kind of dead-zone for doing decent damage, or perhaps I'm just using it improperly, but it feels like a waste of a button press to me.

Flak Cannon. Weak, often doesn't stagger.

It seems like the shield drain evo for Lance is designed for Asari Adept, the shield drain is way too high for the Duelist. Could be 5 ticks, especially since it's weaker than Phase Disruptor.

The worst thing about Flamethrower is you can be staggered out and do no damage, but the damage is nice and it actually has some crowd control. Need more innate range, though.

Try throwing it at their heads. Hell throw it while scoped. It does a shitton of damage to a destroyer if you throw it inside the chest piece. Good power that's kind of overshadowed by other powers having more utility.

Flak cannon has been taking a lot of flak lately
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Ill get my coat...

Another vote for Flak cannon. Might be a L2P issue though, but I doubt it.

Definitely the assault turret. The engineer in general is underpowrered

Turret...I also feel like flak cannon is more of a stagger/stun tool versus straight up damage.

Backlash? It's a great power I wish more had.