As Horus just mentioned, your not paying the correct amount of points for your grey hunter and blood claw packs.
The list in his post is slightly off (that grey hunter pack is only 180/185 depending on which gun you count as the second one.)
As Arcticor, Insanity72, and Horus have mentioned, Njal really doesn't fit in a list at this point level. Yes your getting the Njal model, but that does not mean you have to use it as Njal; you can instead use it as a regular rune priest.
Anyway, so you have a power armoured marine model and are getting the battleforce which gives you twenty power armoured marines, five scouts, and a drop pod along with Njal (in terminator armour.)
My friend is getting blood angels so that is what ill be up against,
Alright so your going up against marines, makes suggestions and recommendations a bit easier. Mind you, its still a bit better to aim for something more all comers, but thats mostly my opinion.
First thing would be making those blood claws into a second pack of grey hunters. Blood claws are alright when they get the charge, but their lower BS means that meltaguns and plasmaguns are a bit of a waste on them (especially a plasmagun as it can deny them their charge), they are best in larger packs or when transported in a land raider, and you really want something like a wolf priest leading them.
Next, I'm going to echo the others and suggest using the Njal model as a rune priest in terminator armour, give him the master of runes upgrade to make him a more powerful psyker. The priest won't have all the rules of Njal, but it will save you 100 points.
Then there are the scouts, who you have armed for two conflicting roles, that of long range support and close combat. Yes you can move and shoot the sniper rifles, but you don't want them moving; but you need to be moving so you can get into combat for the power weapons. They need to settle on one of those roles.
Personally, I would recommend something along the following list:
Terminator armour, master of the runes
Grey hunter pack
9x Grey hunters
Power weapon, flamer, mark of the wulfen
Grey unter pack
9x Grey Hunters
Plasmagun, power weapon, plasma pistol
Wolf guard pack
3x Wolf Guard
Combi-plasma and power weapon, combi-melta and powerfist, 2x wolf claws
This makes use of all of your models, is set for all around gaming but is no slouch against marine armies, and can be built upon later.
The three wolf guard would each join one of the three packs, the plasma and power weapon wolf guard with the drop pod pack, the twin wolf claw with the second grey hunter pack, and the melta and powerfist with the scouts; the rune priest would also join the non podding grey hunters.
Its not a perfect list by any means, and this is due in part to the fact that the vast majority of the battleforces are not good for starting an army (they are best for adding a fair amount of stuff to an existing army.) But thems the breaks, and a strong list can be made with what you have at your disposal.