Recharge. You want Phantom Army up as much as possible.
The Phantom Army is the core of your offense and defenses as an illusion troller. You'll want as much recharge as possible, to keep it active as often as you can. Pick up Hasten, and slot Accelerate Metabolism for recharge as well, so that you can stack them together and get them both down to permanent while they're active.
My current ill/rad has around 63% global recharge, and with AM and Hasten up, AM's recharge is around 115 seconds, and Hasten is at 123 or so, making it almost permanent. This also brings PA's recharge down to about 63 seconds. There's a SMALL gap there, but generally my phantasm's decoy is enough to keep the GM/AV occupied for those couple seconds until I can put another PA out.
Eventually I'll pick up some more recharge, and get everything perma.
If you've got Mids, go through there and put together some builds geared towards recharge. Basilisk's Gaze for your two holds, Expedient Reinforcement for your pets, Doctored Wounds for your heal, Malaise for your confuse, etc.
If you've got some serious money, you can also look at picking up a couple of LotG recharges and putting them into your invis power(s).
The Mastermind Project
Leveling every primary/secondary to 50!
50: Bot/FF, Bot/Dark, Ninja/Trap, Merc/Pain, Necro/Dark, Thug/Dark
Works in Progress: Thug/TA, Merc/Poison, Thug/Pain, Ninja/Pain, Thug/Storm
All your questions can probably be answered in the Local Ill/Rad Guide, Draft Version. Version 2 is posted later in the thread, and it has recommentdations on recharge IO sets.
LOCAL MAN! The most famous hero of all. There are more newspaper stories about me than anyone else. "Local Man wins Medal of Honor." "Local Man opens Animal Shelter." "Local Man Charged with..." (Um, forget about that one.)
Guide Links: Earth/Rad Guide, Illusion/Rad Guide, Electric Control
Thanks a lot for the link, its probably one of the best guides I have read for any AT be it villain or hero. Thanks also for taking the time to write this up for hero noobs like me lol it answered so many of the questions I've had for this toon.
So I rolled a ill/rad a few days ago and I gotta say wow, I've have some toons that were a grind before but this toon was ridiculous!! I just dinged 34 and god I was never so happy to get a power as I was when I got my Phantasm. Also I was never so happy to get three slots then at 33 when I could throw some on him. I rolled this toon to try and solo AV's and try GM's since I don't have any toons that can do it. Now let it be known I've been playin for 3 yrs and this is my only hero so my question is what am I trying to build my troller for to take down AV's and GM's, recharge? Recovery? Def maybe? I figure at 35 is when I'm going to start looking at sets. Thanks for any help in advance.