Hi, I have been trying to run a corsair/harad army and now that monsters have gotten some special new abilities a wraith as well.

Warband 1:
The Knight of Umbar (leader)
6 corsair reavers
6 harad spears

Warband 2:
Harad Captain mounted with war spear
6 corsair reavers
6 harad spears

Warband 3:
Harad Captain mounted with war spear
6 corsair reavers
2 harad spears
4 harad with spears & bows

Totals:
600pts
7 might
4 bows

Alternatively I could use regular corsairs and effectively shoot 18 times a turn however I have a few questions about how throwing weapons work.

If a corsair threw a dagger at his charge target and wounded / killed it can he continue on to charge a new target?

Also as for the KoU and fellbeast due to the new rules can the fellbeast barge?

Also if the KoU wins a combat and knocks the model to the ground (assuming he didnt inherit the enemies attacks) I can use the fellbeasts attack and strength.
This would give me ((2 + 1 for charging) * 2 for knockdown) 6 attacks, correct?
And can they can use the fellbeasts strength 6?

1) yes, up to his max movement
2) yes
3) almost. It's still 3 attacks, with each attack getting 2 dice. That means you could do a max of 6 wounds to one model, but can only kill a max of three models, because each attack is applied to one model. Yes, it's at the fell beast's strength.