What my choices will be depending on what im doing.
Void Tendrils as it wont require me to stand up close (also no movement) and only usefull with thight packs i see it mainly as good choice for PvE and depending on how fast them Tendrils will get destroyed in PvP.
This will be my pick for PvE
PsyFiend: Mainly a PvP talent, i rather keep them Hordies at bay then run up close and psyscream.
If theres a similar Glyph like for PsyScream to hold mobs in place it could be good for pve as well.
My pick for RBG's/BG's
Psychic Scream: PvE/PvP PvE with Glyph pvp Without vs those pesky rogue's.
My pick Arena's
Body and Soul for Raiding (even when shadow) as it brings raid utility and for PvP.
PvE & BG's
Levitate is only good on your self, unless a fight has a Gong like mechanic as atramedes
Situational for PvE fights when there's no kitty/rogue otherwise a lvl'ng/idle City talent.
Phantasm: Extra Trinket on low CD.
3> This Tier is interesting to what to pick as i need more info on certain things.
When im raid healing i guess, if damage is good than for dps as shadow. Dont see this spell work well in PvP unless the hordes allows me to run along in its path.
PvE healing perhaps extra dps on AoE downing adds as healer might be handy.
Surge of Light: 6% chance on getting a free spell. I use it in my current build and it pops up often enough
Not my pick for PvE healing and DPS more for PvP synergize well with serendipity.
Archangel: I think this will be my pick for both PvE healing and DPS.
Totally depends on how we get evangelism stacks and how good the star will be.
PvE Healing perhaps.
But i will take this one as Shadow.
Final Prayer my pick for PvE
Angelic Bullwark for PvP.
Desprate Prayer could work well as synergy with Void Shift.
Otherwise i dont see this as a good pick.
5> Interesting tier for both PvE and PvP
Twisted Faith: Double dipping possible ? Atonement ? Dunno if i want this, maybe if double dipping is possible for tanks.
DPS Wise for PvE its a interesting choice, go for it or get PI.
PvP wise, its usefull to get ur enemy down just that bit faster as PI time might be wasted when u get silenced/interrupts.
Atonement double dip in pvp perhaps.
PI: Good talent for PvE good for PvP in BG's arena/rbg's might be less good than TF due to interrupts as healer but dps might be less problematic as they tend to go for the healer first.
This will be my pick as PvE healer.
Perhaps as DPS as well depending on TF not certain yet.
Serendipity: Can be usefull in PvP dont see it being usefull for my playstyle in PvE healing and seeing shadow doesnt use mind spike that often.
FH/BH is the heal i use most in PvP and getting a faster GH is always handy Same for Bursting down a Hordie with MS MS MB as shadow.
My pick for all PvP.
6> Another tier that has more than one desirable spell.
Vampiric Dominance atonement double dip ?
Good for Raid healing and tank healing if double dip works or when u assigned to the melee group.
My pick as DPS PvE as it gives more raid utility as dps.
Vow of unity, interesting spell.
Curious how this will work out for PvE as its a Long CD Binding Heal and Pain Suppression in one.
I see uses in PvP but in Arena/RBG's u will prolly be the one they focus on making the spell useless.
But PvE and BG's it can work and as Shadow u can give one a 50% damage reduction while u be save in Dispersion (pvp?).
Also does this trigger final prayer on u as well ? 50% damage reduction is nothing to sneeze at.
Void Shift (dont like the name tho we're no Locks)
Also interesting to play with, PvE wise this can be fun but if u do so all healing going to the tank/dps by other healers will be wasted as he will get ur health pool. But synergize this with desperate prayer and u have a quick big heal on the tank and u will be save, less good in 25man situations.
Also does this trigger final prayer ?
PvP wise together with desperate prayer u have a strong cd at hand not to mention as shadow, Shift > Desperate Prayer > Dispersion if they go for u after the shift.
What to pick as healer in PvE and PvP, mmmm i dont know i see the Shift as a strong spell in 10mans and if it synergizes well with desprate prayer or Final prayer than i can see Shift being worth to take in both PvE/PvP. Shadow PvE i think Vampiric is a no brainer but in PvP there some intresting things to pick for shadow.
Anyways thats my quick take on what to pick for what im doing at the time.