Air Quotes wrote...
Shadow needs something fast to help with SS. And a Palm Blaster makes sense.
I'm provisionally okay with the idea of substituting a fast CQC power for the current slow one, but I don't think Phase Disruptor is a good choice.
ES doesn't cut it. It's slow, annoying, unoriginal and overpowered. You get great reward and no risk. That's why it's a fav for campers. I don't believe Bioware envisioned this character to be a wall hugger that is played safely by hiding behind cover.
I think the best solution to the spamming/farming problem is to fix Shockwave, Electric Slash, and Biotic Slash so that they penetrate cover similarly to weapons: only up to a certain depth, and with reduced effectiveness.
But I actually don't find Slash particularly problematic on a Shadow-Strike-focused build (I play 6/4/6/5/5). ES gives me an option to detonate the shock effect of SS from a moderate distance, which can be important against Ravagers and sync-killing enemies. The long animation is irritating, but since I essentially only use it while Cloaked, it's just a problem of inconvenient timing (rather than the potentially deadly delay it might introduce on a non-Infiltrator).
I'm not saying ES is great. I don't really understand how it works lore-wise--I swish my sword through the air slowly, and that makes electricity come out?--and I'd prefer something that made a better panic-button. I'd even be willing to put up with a longer cooldown to get something that had a faster cast and felt more... I don't know, Shadow-y.
But I don't think a Phase Disruptor (or a PD/Nova-type power) is a good choice. Most of my reasons have already been echoed in the thread, but I'm particularly persuaded by the fact that the Shadow has no consistent or convenient way to recharge shields, and is already uncomfortably squishy if you're caught in the open while Cloak is on cooldown.
Moreover, I think there's another power lurking in the wings that makes just as much sense as a "Palm Blaster": Concussive Shot. (I've only skimmed the last couple of pages of this thread, but I'm pretty sure no one else has suggested this.) It has a fast casting animation and a fast cooldown, which is just what the doctor ordered for the Shadow. It actually makes for a decent single-target CC ability, which is also right in line with what she needs. It's currently undervalued, mostly because it has poor synergy on the classes that have it. But on an Infiltrator it could be fun times... with no screen-shake and no potential for wallhack abuse.