2000 point Dark Elves list

Can I ask why as he has no other Arcane items with the other two being a magic weapon and armour.

Thanks

BRB p. 504: "Only a character with a Wizard level can carry an Arcane Item."

The BSB can not take a Magic Banner along with other Magic Items as well.

What’s the point of the master on foot? 4 S4 attacks isn’t going to add much to the Corsair combat rez, especially for the points. His leadership won’t help too much either.

Also, the lance on your BSB is wasted, since he is required to use the relic blade.

Personally, I would drop your master on foot and try to find the remaining points to get 2 bolt throwers. I like corsairs over the ubiquitous witch elf deathstar or dark rider spam, but I would be concerned they will be left behind by the faster cold ones. And if you are holding the cold ones back to wait for corsairs, the cold ones are left in the open vs shooting and magic for longer.

I think only having 5 units is a concern as well, and redirectors and chaff will be a difficulty.

I don't think your equipment loadouts on your characters is great:

Dreadlord - the combo of Cold One + Heavy Armour + Sea Dragon Cloak gives him a 1+ armour save. You don't need a shield. Dragonbane Gem is not bad in itself, but how often are you fighting flaming attacks? You would be much better off with a general ward save you can take against anything. An elf has crappy toughness, and as such is very squishy, even with that 1+ armour save. The Talisman of Preservation or Armour of Destiny are your best option here for a 4++ ward, but if you've used both elsewhere then you can go for the Black Amulet instead. The Chillblade is also mediocre in this situation - wounding automatically is great, but the other part of its benefit rarely comes into effect, and you have no way of punching through armour. You would be better off with a cheap Sword of Might or better yet the Ogre Blade - both offer a consistent Strength boost, and help you with both wounding and armour saves. I'd recommend: Black Amulet + Ogre Blade.

Master - same situation with the shield; it's unnecessary. Also, the Dragonhelm is a very expensive ward save against (relatively uncommon) flaming attacks; it doesn't help your armour save which is 1+ already. You should kit this guy out much like the Dreadlord, but with the priority on getting a ward save - you need to keep your BSB alive, especially in a unit of Cold Ones who otherwise will fail a Stupidty test at the worst possible moment. If you give him the Talisman of Preservation or Armour of Destiny (which you should) then give him a lance as a weapon. The Relic Sword is nothing special - ditch it. I'd recommend: Armour of Destiny + Ironcurse Icon.

Supreme Sorceress - Warrior Bane is pretty pointless unless you really have 5 points to spare and absolutely nothing else to go for. Your Dreadlord and Master + Cold One Knights will do the damage. She's there to cast spells and stay alive.

Corsairs - I love these models; they're versatile, but do get overshadowed by Witch Elves, which are cheaper and much more deadly. Still, they're solid at churning through light infantry, and pretty sturdy. Switching to additional hand weapons was a good move; the handbows are too short ranged to be useful. Do you field them in a horde, or ranks of 7?

Dark Riders - why the banner? Unless you're playing BRB scenarios and need the standard, I wouldn't bother, it's a waste of points.

Cold One Knights - why two units? Your list looks like you've built it around one nasty unit of Cold One Knights loaded up with characters - but actually, neither unit is that big. These are probably best fielded in a rank of 6 (to maximise models in base-to-base contact with an average unit width), which means you want 12+ models in one unit, although that does mean the Sorceress moves to the front, so in this case ranks of 5 could be better. Either way, I'd suggest combining your units into one. Give that unit a Magic Standard - the Banner of Swiftness is good, but I'd also suggest considering the Ranger's Standard if you play on terrain-heavy battlefields, as it lets you spring a nasty surprise by charging cavalry through woods/over walls, when your opponent least expects it.

You should have spare points if you combine the units, as you don't need 14 knights in one unit. You could use that to get a Cold One Chariot in, to continue the theme.

War Hydra - Fiery Breath is much more useful - it can be used in combat too.

Reaper Bolt Throwers - are great, but I worry they'll be vulnerable to any flyers/fast cavalry/other warmachine hunters that go after them. Your list is generally quite offensive, and these don't fit with that.

I agree with Sedge here. You have some good ideas but it doesn't feel like there's a cohesive plan here. Are you shooting, magic or combat focused? I used to do this all the time. Definitely try and ensure you have a couple of bolt throwers to support the corsairs. I was pleased to see you had thought about using the banner of swiftness. I did the same thing with my wood elves and caught my opponent out as we were in combat by turn two.