[CoNnZ]

personally i would drop both the scar vets. They dont really have any role in your army asides being glorified unit champions. Dropping them would allow you to give your saurus spears which will give the unit more killing power than the scar vets.Your slann really outta have banner of discipline, this will make the TG stubborn at ld10, on 3d6 and rerollable pretty much making them unbreakable. Also give him becalming cognitation. Add a skink priest. With him and the slann you should outclass his magic. Cube of darkness generally isnt that good.You want as little of your game to be based on luck. Add the chameleons if possible, they are so good atm

 

[CoNnZ]

If he drops the scar vets he has NOTHING to fight a vampire. Thus his saurus will get owned.

Any smart VC player will deploy a bunker unit for his vampire and place him at the back of his army meaning the 2 scar vets will be be contributing nothing much as they wate several turns clearing everything out the way. Besides vampires will outclass the scar vets given what they currently have The better option is going to be to add the extra saurus and add spears. 8th is much more about killing potential and combar res so the extra numbers and spears would go juch further. As long as you have the extra skink and all the anti magic stuff to go with the slann the vampire won't be getting many spells off. If your set on scar vetsonly go for the one but you will want to tool him up more

 

[CoNnZ]

I would only take the 1 priest as a level 4 and 2 is enough. Those points could be invested in beefing up the slann or adding saurus.
It really depends on your style. If you play aggressively it could be worthwhile taking the scar vet but perhaps consider a great weapon or something to give asf. You will also want to tak lore of death on your slann. Focus his attention of the vampire lords unit and wear it down. This will force your opponent to choose between buffing up other units that will fight your saurus or to run the risk of the vampires unit being wiped and his lord being left alone in the open.
The most popular setup is the defensive style. This will involve dropping one priest and taking spears for your saurus. The slann goes lore of life to keep the tg and saurus alive
The banner of discipline is always worth taking for the slann. Some would even go so far as to call it cheesy on him.