I think I just joined the group of people that got a dream horse. He showed up for my birthday yesterday, only now I can't really find him, which isn't all that surprising from what I've noticed in the dreams. Positive notes: he can run faster than the speed of sound, he's immortal, he's amazing, and he can run across water. Less positive notes: He likes to eat gold.
Lucky for me, I can summon it from the ground and he isn't above eating grass for the most part. I'm also told he has a foul mouth, but I can't talk to horses, so I don't know.