Arry & Child
Sythric will be meddling the situation a bit... He sees the trouble Arry is in. It would have been even worse, if the easterling hadn't changed his weapon: with the spear, he would just have skewered Brand - giving Brand no chance to defend himself (maybe the guy is just a good sport?
).
S will throw his spear at him - missing the man, hitting the horse. The horse tumbles down, sending the man flying towards Brand (beware of the K.O.!). So time for some stunning or wrestling, or whatever you make of it.
That makes S somewhat an underdog in relation to this other easterling that is coming to him. He just has time to try to parry the swing with his shield, but is somewhat late.
Child: you could take it on from that point. Use Sythric as you wish. He would be a good soldier, but not any superhero or "wonderman". And as I said, he can take a blow or two also, just don't cripple him permanently...
(it would be nice, if he could still continue the fight after this one - if not in full health but still standing)
PS.
Arry: if you wish, you could change your last sentence, and let the easterling continue towards Brand with his lance: that is much more powerful weapon for him in that kind of situation... I'll write my post now in such a way, that he will have the sword, but that could be easily changed later.