The Vanguards are stronger this time. An you can't tame the horses.
I tamed a dread war horse in papua.
I didn't NEED another dread war horse, but this Mr. Controller dude in black was just like, sitting on it, and .. well, he was just asking to be dismounted and have his horse snatched. He looked so bola-able on that thing, I couldn't help myself.
I placed the horsie in a nice home later.
Now how about these other grizzled mare looking things which pop up? I'm told that they are tameable and at least in wild form they are seen casting necro spells. I did not see this firsthand, this was someone's description, so i'm asking, not telling.
There was one of these things sorta hanging around luna on my shard, it was red-highlighted, moving around just outside guard zone. I ran and took a look at it. Was like, hmmmm.