TA/Psy/Psy advice

I'm playing TA and psy both for the first time and I really have no idea where to start with the build. Lots of the powers for each set look really good, but there also seems to be some overlap with each other and the Psy APP so I feel like I can skip some. I also have no idea how to slot the TA powers and most of the guides seem a little out of date... Any advice would help a ton, since I'm completely new to this

I'm definitely skipping: Entangling Arrow, Psionic Lance, Telekinetic Blast, Will Domination

I'd like to take: Whirlwind (concept), Fly, Stealth, Maneuvers, Invisiblity if possible

I don't know anything about TA, but if you have any intention of blasting you need to take Will Domination and TK Blast when they become available. along with Subdue, they are your best attacks

I dunno, entangling arrow is pretty useful - takes down fliers too. Flash arrow does little in the grand scheme of things.

I didn't skip any powers in TA though.

Just to echo others here: TK blast, will dom, and subdue are awesome.

I think flash arrow is pointless. Relying on slight debuffs like this for your defense is lame IMO and the -perception is useless. Entangling arrow is also useless 95% of the time, but the 5% of the time it is useful it is very useful.

The bad news: TA/Psi/Psi is hungry for your power choices. Choose your power pools carefully. Whirlwind and Fly and Invisibility may be infeasible.

* Could you do without Maneuvers? To me, at least, Vengeance is the whole point of Leadership, anything less is a set mule.
* Could you do without Invisibility? Super Speed plus Stealth, or Super Speed plus a Stealth proc IO in a travel power, softcaps your stealth against most critters.
* Would you consider a rocket pack instead of Fly?
* Hasten, Grant Invisibility, and Air Superiority are nice to have but may also need to be put on the chopping block.

The good news: TA/Psi/Psi runs nice and lean on slotting. Lots of autohit powers, lots of powers that can only be enhanced for one useful thing. If you're skipping TKB and WD, that indicates you're shooting for a more mez/debuff oriented, less damage oriented build.

* Flash Arrow: Autohit in PvE. Can't stack it. Can't slot it for range. Hostile procs spoil its sneakiness. 2 or 3 tohit debuff enhancements is all you need.
* Glue Arrow: Autohit. Slot for recharge and a bit of slow movement.
* Ice Arrow: Stacks with EMP Arrow, Dominate, and Telekinesis, but not with Scramble Thoughts or Psychic Wail. Slot for hold duration and a bit of accuracy. Recharge too if desired. Slow movement is probably not useful.
* Poison Gas Arrow: Autohit. Stacks with Mass Hypnosis. 2 to 3 recharge enhancements is all you need. Sleep duration too if desired.
* Acid Arrow: Can't stack it. Just slot for a bit of accuracy. Defense debuff too if desired. Damage is probably not useful.
* Disruption Arrow: Autohit. 2 to 3 recharge enhancements is all you need.
* Oil Slick Arrow: Autohit. 2 to 3 recharge enhancements is all you need. Add a bit of slow movement if you want to be able to movement floor enemies without Glue Arrow. Add damage if you have a way of lighting it. Defense debuff too if desired.
* EMP Arrow: Mez nuke. Slot for hold duration and recharge. Endmod is probably not useful.
* Mental Blast: For stacking moderate -recharge on bosses. Slot for recharge/endredux and a bit of accuracy. Damage too if desired.
* Subdue: Immobilization does not proc reliably (only 80% chance). But the magnitude and duration are decent. Slot for immob duration and a bit of accuracy. Damage and recharge/endredux too if desired.
* Psychic Scream: For stacking heavy -recharge on 10 enemies at once. Slot for range, recharge/endredux, and a bit of accuracy. Damage too if desired.
* Psionic Tornado: For stacking moderate -recharge on 16 enemies at once. Slot for recharge/endredux and a bit of accuracy. Damage and knockup too if desired.
* Scramble Thoughts: Stacks with Psychic Wail, but won't stack with Ice Arrow, EMP Arrow, Dominate, or Telekinesis. Slot for stun duration and a bit of accuracy. Recharge too if desired.
* Psychic Wail: Another mez nuke. Slot for stun duration and recharge. Damage if desired.
* Dominate: This will be your best single target mez. Stacks with Ice Arrow, EMP Arrow, and Telekinesis. Slot for hold duration, recharge/endredux, accuracy. Damage if desired (recharge is too long for a standalone damage power, but its fast animation makes it decent in a chain).
* Mass Hypnosis: Sleep only, no debuff. Won't be useful every spawn, so recharge enhancement is optional. Sleep duration is preferable, since if you have to use MH, you probably want to keep stuff mezzed a long time. Don't forget accuracy.
* Mind Over Body: Armor toggle. Resistance and endredux.
* World of Confusion: Sucks.
* Telekinesis: You will be using this more for repel than for hold, to keep enemies bunched together. Slot for recharge, so you can turn it off when you've pushed the enemies sufficiently together, and have it come back in time for the next spawn.

Suggested slotting order:
1) 1 or 2 recharge in powers with 45 seconds or longer base recharge times (except Mass Hypnosis).
2) Accuracy in powers that need it.
3) Psychic Scream.
4) Psionic Tornado (except knockup, that can wait).
5) Any other powers you want to slot for damage.
6) Any other powers you want to slot for mez duration.
7) Everything else.