Lord
Supreme Sorceress - 245
Level 4 Wizard
Dispel Scroll
This fine lady wants a wardsave. The Dispel Scroll isn't bad, but you have better uses of your 100pt item limit on your *general*. Even if you just scrimp in the Book of Ashur, or were to swap the Scroll and Dagger (want the help on the main caster, let the secondary carry the goods), that would be better. I'd definitely look into getting her a 4++ as your first order of business, however. Also - what Lore have you got in mind?
Hero
Sorceress - 140
Level 2 Wizard
Sacrificial Dagger
Eeh.... depending on your main Lore, I would possibly consider dropping this chick. It's not worth having an extra Wizard for the Scroll *or* Dagger, and I don't see what she's bringing to the table otherwise. Again - what Lore?
Master (BSB ) - 107
Additional Hand Weapon
Heavy Armour
Sea Dragon Cloak
No wardsave again. Also, AHW just isn't worth it on *anything*. Any additional Strength is better, until you have eclipsed roughly *2x* the number of attacks you would normally get. So if you have 3A as a Noble, you would need to get to ~7A before it was as good as having +1S.
I'd throw this guy the Armor of Destiny, give him a Sea Dragon Cloak, and a Halberd or Greatweapon, and leave it at that.
Core
25 Corsairs - 250
Full Command
25 Corsairs - 250
Full Command
Tiny, first of all - they're going to get ripped up before they even get into the fight. We need units of ~30 for these guys. If you aren't taking your entire Core as Dark Riders, then you need to take a singularly huge block of something (corsairs, witches) and then fill in the edges with Riders carrying RXBs, ro at least with RXBowmen on foot. Chaff is the name of the game - cheap and easy deployment drops who can create blocks and redirects for your army, and/or clear out enemy chaff themselves.
Secondly, you only need Full Command if you are escorting a character who you want in the front rank but *not* in a challenge. Otherwise you can ditch your Champion. Also, remember to drop 1 model for every character who you intend to escort.
Finally, you should go wide, rather than deep, with Corsairs. Elves are rarely ever going to have many ranks against the enemy, so we need to whittle them down as quickly as possible. Yes, Corsairs *can* make a decent anvil with their armor.
It's also worth pointing out that with Corsairs and Witches, a big part of the draw is throwing a Cauldron or at least a Brewed-up Hag into their ranks. It takes them from being "just another Core unit" to actually being a scary "deathstar" of sorts. That frees you up to take other whacky shenanigans in your Special and Rare. Generally, Dark Elf lists tend to favor a beefy central regiment to take the punishment and deal out the damage, and then fill in the rest of the list with avoidance and harassment "hunter" units to rack up points elsewhere on the table.
Special
37 Har Ganeth Executioners - 474
Full Command
That's a lot of Execs. Keep in mind that you lose ASF. If you take Black Guard, give them Frenzy, and stick a Razor Banner on them, they're actually not half bad. The difference in Strength is actually offset by the number of attacks and the fact that they retain their rerolls. It makes them good against a wide range of opponents, because they have sheer weight of attacks against "little stuff" like Gobbos and other Elves, and then they've got the Razor Banner and a (still reasonable) S4 to handle the big guys. Better if they're backed with Magic. Even better with a Cauldron, of course. Again - these guys could replace your Corsairs hands down.
Putting Frenzy into your Execs wouldn't be bad though either. The same is true all across the board, but I consider the BGs to be the stronger unit here.
Repeater Bolt Thrower
Repeater Bolt Thrower
Repeater Bolt Thrower
Lot of RBTs here. Kind of meh - they will *not* kill monsters, if that's your plan. They're better when fired as a volley of 6 shots, but at that point, you can throw the points into Core models equipped with RBTs (again: Dark Riders or RXBowmen).
Rare
Kharibdys
Kharibdys
Probably the worst you could do with your Rare, unfortunately. The model has such whacky rules - ask yourself what the goal of one of these (let alone two) would be on the table. Then ask yourself how reliably they can complete that goal, and if there might not be something else in the book which could do it better.
You can't underestimate the sexiness that are Warlocks. 4+ Ward on Fast Cavalry, with their free spells, makes them pretty solid. Unless you're comped out of using them, they'd be my only investment in Rare. Otherwise, I'd dump the points into Special or Core.