I've been going over the spell pass changes in Update 9 and have pretty much worked out the build that I am going to try. I just TR'd this character into his final life and have a lesser heart saved to swap to this build once U9 goes live. His past lives are 3x Sorcerer and 1x Wizard, and I've tried to tailor to these strengths. The stats are laid out with tomes that I already have, everyone has a different opinion on where to put points after Charisma. I prefer max con and the leftovers spread around, you should lay out your stats however you see fit, these are just recommendations.
Level 20 Human Sorcerer - True Neutral - 36 point build
Stats -
Str - 10 (+2 tome, +6 can be slotted in if you feel it is necessary = 12 or 18)
Dex - 8 (+2 tome, +6 item = 18)
Con - 18 (+2 tome, +6 item, +3 Exceptional, +1 Human Greater Adaptability = 30)
Int - 9 (+3 tome = 12) because I have the tome and like the skill points
Wis - 9 (+3 tome, +6 item = 18)
Cha - 18 (+5 Levels, +6 item, +2 tome, +3 Sorc Enhancements, +1 Human Adaptability, +3 Exceptional = 38)
I have access to +2 ship buffs as well, but not Yugo pots (at least not for a little while). I also am without a +7 Charisma item and a Litany, so there is room for growth.
Feats -
1 - Maximize
1 - Toughness
3 - Extend (take for the early levels and if you can live without it swap it for Spell Focus: Necromancy around before level 18)
6 - Spell Focus: Evocation (or Past Life: Arcane Prodigy if you prefer)
9 - Empower
12 - Past Life Arcane Initiate
15 - Heighten
18 - Spell Focus Necromancy (Greater Spell Focus: Necromancy if you swapped out Extend)
My Spell Pen is 28 and I am finding that to be fine in epic content, even on orange devils and abashai while solo farming scrolls in eChrono
Spell List -
Level 1 - Jump, Nightshield, Protection from Evil, Hypnotism (-3 Will Save is awesome)
Level 2 - Resist Energy, Web, Knock, Scorching Ray
Level 3 - Haste, Rage, Displacement, Halt Undead (or Fireball if you have no need for Halt or want to scroll it)
Level 4 - Dimension Door, Enervation, Wall of Fire, Fireshield (or Ice Storm and just scroll Fireshield, I'm just not a fan of Ice Storm at all - if you don't take Extend definitely scroll Fireshield the duration difference is negligible)
Level 5 - Protection from Elements, Cloud Kill, Niac's Biting Cold, Cyclonic Blast
Level 6 - Otiluke's Freezing Sphere, Circle of Death, open slot here whichever level 6 spell you can't do without - I change between FtS, Acid Fog or Disintegrate depending on what I'm into at the time
Level 7 - Finger of Death, Otto's Sphere of Dancing, Waves of Exhaustion (Prismatic Spray is a fun one to carry here as well)
Level 8 - Polar Ray, Symbol of Death, Otto's Irresistible Dance (tried Horrid Wilting and didn't like it, Power Word Stun is pretty nice spell here as well)
Level 9 - Wail of the Banshee, Power Word: Kill, Mass Hold Monster (Energy Drain is an option here but I prefer Enervation, MHM still works especially if you hit them with a Hypno first)
The spell list is designed to get the best out of the Water Savant cold damage, maintain powerful instant kill abilities and deal with threats through a variety of CC with some Negative leveling thrown in for good measure. For dealing with cold immunes you still have Wall of Fire and Scorching Ray, as well as untyped.
Enhancements - As listed in Character window
Sorcerer Bloodline of power
Human Adaptability
Sorcerer Improved Maximize II
Racial Toughness II
Sorcerer Water Savant III
Glacial Spellcasting VI
Combustive Spellcasting II
Kinetic Spellcasting I
Deadly Ice VI
Deadly Flame I
Deadly Kinetics I
Frost Manipulation VII
Flame Manipulation VII
Force Manipulation I
Sorcerer Improved Spell Penetration III
Sorcerer Energy of the Dragonblooded II
Sorcerer Charisma III
Yes I am a Water Savant with a secondary focus in Fire, and it works! I chose to use my AP to take the full damage enhancements in fire, mostly to increase the damage of Wall of Fire. I planned to put 1 point in the crit line and crit multiplier line but ended up with an extra point and stuck it in the second rank of the crit line, you can use it in scroll mastery or whatever you like. I also dropped a point into each of the Force lines to give a little boost to my untyped damage of Cyclonic Blast or Disintegrate if I happen to be carrying it, and the Wiz Past life missiles for kicks. If you prefer you can use those points elsewhere, if you drop the 3 points in force and the extra in the Fire crit line that frees up 4 AP which you can use elsewhere.
Gear - a work in progress, just going to list what I have or wish I had
Off-hand - +9 Charisma Dagger (Alternate Skiver)
Main hand - Ornamented Dagger level Tier 2 level 16 version (Alternate Epic Ornamented Dagger, Upgraded Death's touch)
Helm - Minos (Going for Epic Helm of Frost eventually)
Goggles - Conc/Opp, 150 exceptional SP, Blindness/Disease Immunity, +5 Cha skills
Trinket - Eardweller (Litany someday)
Necklace - Cartouche (Epic Shaman's would be nice for the greater Evocation Focus as would Torc)
Cloak - Napkin (Epic Envenomed someday)
Boots - I swap boots too often to really decide on a single pair, many useful choices
Belt - Water Savant belt (have all the caster belts)
Rings - FF random, Spell Storing, Bucaneer etc (Still need to get ToD rings)
Gloves - Undecided
Bracers - 45 HP Min II, (Ideally would like Epic Scorched Bracers here and hp item in gloves slot)
Robe - DT with GFL, +6 Con, Greater Spell Pen VIII
I think that covers just about everything. Of course it is a work in progress, but I am really enjoying it in all aspects of play. It has room for tailoring to specific playstyles, in the feats and spell list.
I'm open to comments and suggestions, hope you enjoy!