Hey guys, I'm making a balanced army composition but I need your help. I think I don't have enough anvil for staying power. And what do you think about my compostion now? I used all models I have but i'm willing to buy more at the time. I just need to find out what I should change about this composition to make it better, and what to buy first to make it even more better.
Thank you in advance and Merry Christmas!

General
Dreadlord mounted on pegasus

BSB
Master in anvil unit 2

Magic
Supreme Sorceres lvl 4

Anvil unit:
30 corsairs with double handweapons

Anvil unit 2:
no models yet

Hammer 1:
cold one chariot

Hammer 2:
5 cold one knights

Hammer 3:
Kharybdiss

Shooty:
15 darkshards
15 darkshards
1 reaper bolt thrower

Harrasement and tactical
8 shades

Fast
8 darkriders

These are the units I probably want to put in the current army: Black guard, Executioners, 5 cold one knights, 1 reaper bolt thrower.

Quick question. What points level?

I think about 2000/2400 points

Black Guard are expensive, but IMO they're the best anvil unit we have. Win or lose, they WILL hold a combat unit for at least one round, unless your opponent kills the whole unit outright, which is not easy to do. I can't tell you how many times an opponent of mine has charged, or been charged, by a unit of black guard, only to win combat by 4 or 5, I laugh and say "unbreakable", and then the next turn they get flank charged by a horde of witch elves with a cauldron and hag (or two). That very trick won me a tourney a few weeks ago.

Nice tactic! I think I gonna try that together with a unit of executioners instead of with elves. So the Black Guard would be a good first addition to my current army right?

180 points for Kouran is a bit much at certain point levels to make them unbreakable however, he isn't really viable until 2.4/2.5k.

Did I use the wrong term? I don't take Kouran, so it's whatever normal Black Guard are.