Agree with the legendary list.
On the super epic front, I typically find that desperate doubles and timestrike bloodcravers are much more useful than the stun flashers.
Desperate doubles particularly good for any non buffed enemy team, almost guaranteed to take down two enemies at once (or more with a give turner), Timestrike bloodcravers seem to be relatively easy to set up sweepers. My luxking has proved invaluable in sweeping AL teams if my opening line sweepers die (particularly when I load a number of bronzeshells on them).
I find the 300s to make the stunflashers capable is too long, esp. given that by the point survivor is powered up, they've usually taken some damage so can't sweep too many ops given that survivor takes its toll on them.
Agreed, the desperate doublers are very useful especially when you have more of them. Place a give turner with them and destroy half a team.