There were times when everything just seemed to go right for me.
When I was concentrating just right, and made the right moves at the right times to be absolutely effective.
Upon further thought, I realised that it was mostly melee playstyles, and mostly tanking where that happened, or where it stuck in my mind.
The main example I recall (but not in any real detail several years on) was being on my Stone/Fire Scranker and somehow being able to keep an eye on *everything* going on - the currently engaged spawn, the health of the team, seeing a spawn about to be aggro'd half a second before the blaster annoyed them and teleporting into the middle of them to grab enough aggro that the blaster wasn't a bloody smear on the wall, etc. etc. For some reason it all just worked.
I've had times where I've just casually strolled through missions on one of my scrappers facing odds that just ten minutes previously were leaving me twitching on the floor.
I've soloed at my own (casually slow) pace on my Archery/Energy blaster through warehouses of Council goons on Striga where I ended up feeling invulnerable because I was playing smart and to my strengths.
I've been on my Fire/FF controller where I've kept everything locked down being slowly scorched away from below by Hotfeet and Imps.
And on every one of these characters, I've had absolutely miserable days where nothing I did seemed to work.
A memorable situation in a little more detail.
My *Main* character was a Katana/Regen Scrapper. I had a devil may care playstyle with him, as I'd been playing him since the day before EU launch and knew fine well what he could cope with, what he couldn't and when it was time to faceplant. I'm on a Shards TF, the exact one of which eludes me, and we're in a cave full of Rularuu. We reach an intersection and get nailed by two static spawns and (I think) a patrol, and things go wrong pretty fast. At this point, I should probably add that this sort of inspiration tray loadout (which is culled from the last screenshot I took on the live servers, seconds before they pulled the plug)
http://imgur.com/Ey8TGju is entirely typical. I collected and carried large inspirations 'for a rainy day'.
Well, at that point, it was raining pretty damned hard...
So there's an attempt to pull back to cleared areas, but people are dropping, so I go into berserk mode and hit everything defensive I've got by way of powers as well as large oranges, purples and reds. Then I start doing what scrappers should. Target the big threats and work down the list. Nothing too special, just the usual <grin>.
At some point, the upright and fighting portion of the team becomes me. I'm popping insps as they arrive in my tray. I don't know how many of them were passed to me by the faceplanted, and how many were being ripped forcibly off the Rularuu. Some of the team have hospitaled and are heading back, and a couple are lying on the floor spectating (and probably saving my arse by passing insps)
Eventually I stop getting insps to burn. Mainly because I've managed to beat down all the Rularuu that are a threat in the area, as the hospital visitors start arriving back in the mission
I was never good enough to pull off that sort of thing regularly or on demand, but when it worked it felt good <grin>
And to all those who are about to say 'pfft, that's easy, I could have done that easily on my scrapper', I should add that IO's on that toon were present but only in a totally haphazard, non-planned manner. I took my Issue 5 build and fit sets in that looked interesting where I already had powers and slots allocated. Rebuilding for IO's was not an option on that character, because to me, at that point, the build was a large part of the character.