I think I'm going to die. I blame the horse.
Don't forget that you can use your mount for cover with a DC 15 ride check. That will give you another +4 AC.
And... let me remind you that you have Invisibility at will as a SLA. So you could have the horse move 5' and then make yourself Invisible, and then dismount with your own move action. The hobgoblin won't know where you went. I'd probably do that.
No, I don't want to change my actions. I figure Venn can kill one guy per attack if he's invisible. Each of his attacks does like twice what one of mine does, and he can attack multiple times per round. So it is better to enable him than to attack myself.
I can hit Goldflower with an immediate action Close Wounds on top of what I posted, though. I thought I'd hold it to see who actually needs it, but if she goes into the mist I won't be able to use it on her. So I'll do that.