Well progression is over. For me :-p
Therefore I will most likely be basing future talent recommendations around Maximizing damage potential in many cases with little to no regard for raid utility.
Here are the talents I used for Terrace progression.
*Note I was part of a "kill squad" which was full time on adds the entirety of the fight. Was also mass dispelling Lightning Prison and maintaining full DoTs on the primary kill target. Occasional VTs to ineffective targets for Mana regen only, not to milk procs.
Divine Star (Center Stack strat, so this may vary)
Mass Dispel Glyph, MSpike Glyph
Dark Binding (to renew tsulong afer breaths mainly), Mass dispel (for terrorize) Mind flay (ideal for short movements to avoid nightmares)
*note I am on scary fog duty in this so my movement is excessive even for this fight, these talents will probably be pretty standard regardless.
Bender or FDCL - Doing scary fog it is useful to have pet being a larger portion of your damage to allow more focus on your primary job. Most shoudln't need to worry about this.
Divine Star - Lots of movement, lots of stacking, lots of close quarters action.
Sha of Fear
Mind Flay glyph is great for this fight<<< Moving from Penetrating Bolts and grabbing Orbs in p1 and for water spouts in P2
FDCL or Bender depending on your platform DPS. Bender Burst can be a big help.
ToF or DI - You can keep ToF up decently while killing terrors, but I prefer DI for P1 progression.
Zerg Strat (Not killing Terrors)
Once you have pushed p2 and are progressing on the second half of the fight. The real fight.
FDCL - Glyphed MS
Cascade - Halo works well but positional requirements and constant re positioning in P2 will more likely cause a loss in DPS when attampting to maximize it.
Once you have Lei's Hope buff most strats will favor zerging P1 each time to get back to P2 progression. Cascade will be of limited use, but is an excellent GCD filler as you wil be moving so much toward the latter end of the phase to dodge Pbolts that you will not always have another instant available.