I have a lvl 50+3 Mind/TA but she's one of the characters I play the least on iTrials. All the tools she's got to debuff or disable mobs don't really shine on huge leagues. Generally the aim is not to defeat every single enemy but to click the glowie; and if the mobs are full of lvl 54++ bosses or EB, it can become quickly dangerous to try to control them all 
BAF : Glue and Oil Slick Arrow especially are really nice during the prisoners' phase if your league use a "choke points" strategy.
Lambda : Hmm... Mass Hypnosis can be useful to stop enemies from chasing you during the crates/containment chambers' phase.
MoM : Telekinesis is golden against Mother Mayhem when she tries to reach the well. Some phases are full of tiny Mothers Mayhem that are minions or lieuts, and can be a threat to squishies. Maybe you can try to control them (or cast Judgement on them, which is as much effective).
DD : I didn't run this trial with this character, but I suppose against lvl 54+2 or +3 mobs, additional debuffs (and damage through Oil Slick Arrow) always help to speed up things.
Against AVs I suppose Acid and Disruption are always nice, although it can be difficult to see if there's really a difference since we can't use any Power Analyzer. Against huge mobs you have to find the right timing, to cast your debuffs before the rain of Judgements but without aggroing them all. But fights are generally so fast it's difficult to set up combos. I don't often play my triform Warshade on iTrials for the same reason: these characters are really fun to play only if I fight enemies that last at least a little. They're still useful, but other characters can be useful and fun at the same time.
That confirms my suspicions about the build, which is unfortunate because it is a great build for normal team content. In any case, thanks for the reply.
Chris Magoun
Monochrome Girl lv50 illus/rad/fire cont
Mind Shrike lvl45 mind/ta cont
Song of Land and Sky lvl41 plant/storm cont
Sister Prudence lv38 trp/dp def
Mine was 50 way back, recently ran through Itrials. I find it is now worse for wear then most other debuff/control combos. The extra -res from Trick Arrow and the Dmg from tar pit are still amazing. On lamda she really shines getting glowies. Mass confuse mob around glowy smash and laydown debuffs while they tear each other and it apart. Being able to sleep full groups for a very long time is also great for halting ambushes. Being able to drop the -res arrow in air and around corners is great. Poison Gas Arrow is now reasonably useful, OSA is great for escape phase if you put it at doors and light it, most thing will be dead before they even get out the gate.
I find that on itrials most debuff/buff sets really don't get noticed even if your doing a lot. Especially if the sets are low GRFX.
I still plan to run my mind/ta through some incarnate content just because I think it will make the character even more fun in general. I figured though, looking at her performance against AVs, that it would be a little rough. Still, I am sure that most I trial teams can absorb a character who isn't good against AVs. There are still hordes of trash enemies to deal with.
Chris Magoun
Monochrome Girl lv50 illus/rad/fire cont
Mind Shrike lvl45 mind/ta cont
Song of Land and Sky lvl41 plant/storm cont
Sister Prudence lv38 trp/dp def
I say, if you like the character and you like incarnate content, just go for it. Maybe youll work out some good incarnate strategy or synergy that others didnt, and if not, as long as you have fun, its all good.
Lewis
Random AT Generation!
"I remember... the Alamo." -- Pee-wee Herman
"Oh don't worry. I always leave things to the last moment." -- The Doctor
"Telescopes are time machines." -- Carl Sagan
My Mind/TA is approaching level 50 and she is a fun character to play -- definitely one of my favorites. However, I am a little concerned with her performance in trials. Has anyone run a Mind/TA through some trials? How did it do?
Chris Magoun
Monochrome Girl lv50 illus/rad/fire cont
Mind Shrike lvl45 mind/ta cont
Song of Land and Sky lvl41 plant/storm cont
Sister Prudence lv38 trp/dp def