2 things
1a) AM primary school conjuration, 2ndary school evocation. Will have webs for persistant cc, and an evocation DC capable of landing your nukes (firewall included) most of the time for full damage
-or-
1b) primary enchantment 2ndary evocation (for those of us who have invested in bard and wizzie PL for max enchant DC) use free single target hold or mass hold as situation requires and nuke, if you have a sorc in party you can conserve BOTH of you mana by holding mobs and making the sorcs mana more efficient while maintaining cc at the same time.
2) Sorc- 18 con 18 cha at character roll. pump cha. your firewalls will beat the reflex saves on most mobs without evasion. for those with evasion, as stated earlier in this post MOST of them stand still and shoot at you, so after the initial (maybe) save, they will take damage every tick for the next 26-28 seconds. (i say this as one of the guys who religiously rolled con pumped sorcs. its a change to the game so there will be a need to adapt. no big deal)
also reiterating what many in this thread have said, its all speculation until patch day![]()