So the concept is usual three hammer / anvil chaos core + deathbus of knights w/ choppy caster +
BSB? Not bad, not bad. I do think you can do better on the lord's weapon, save a ton of points by not taking the Banner of the Gods, and also increase or combine all of your units so they can do something that matters. Here's my shot:
Sorcerer Lord -
MoT, level 4, runesword, puppet, talisman of protection, chaos steed = 414
Exalted Hero -
MoT,
BSB, talisman of endurance, ironcurse, halberd, chaos steed = 200
18 Warriors -
MoK, standard, musician, halberds = 336
18 Warriors -
MoT, standard, musician, shields = 326
40 Marauders -
MoK, standard, musician, flails = 246
8 Knights -
MoT, standard, musician = 370
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1892
Dropped frenzy off your tizz bunker warriors and your deathstar - you want control over these guys, as any kind of battle plan (or victory!) is going to hinge around keeping them in your control. Added a ton of command as well (you want musicians whenever possible, at the very least). Note too the points total! Your list was something like 1500 without adding in a few hundred for the knights? Far from 2500, but getting close to a decent 2000 pointer

If you like where my tweaked list is headed, I'd probably suggest dumping 90 points in 3x 5 warhounds, then using the last bit of points to grab the +1M or the +1LD banner for the knights
- Salvage