dont have the exact list with me but the bulk of it is in my head.

skarbrand
skulltaker-chariot
herald of tz chariot, bolt, legion, master

3x5 horrors with bolt

14x bloodletters
icon

14 seekers
icon

2x5 fiends with might

2 princes
tz
bolt
gaze

I don't think
skarbrand or skulltaker are worth the points. Better of with a regular BT, fate weaver or more TzHeralds. the extra points into a another unit of BL would help too.

Agree with deviant. Skarbrand is only for slaanesh lists or maybe for nurgle. Skulltaker isn´t worth it since just about everyone have inv saves. I would have 2x 5 Horrors and 2x 10 bletters or 10 bletters and 10 daemonettes. Don´t take seekers if you have slots for more fiends, fiends are much better than seekers.

Second about fiends over seekers.