Probably since they do technically count as move cards but since you can play cards like Vicious Thrust without moving your character it feels odd to not be allowed to use the non-move portion of the card. If at all possible I think it would be better if halt disallowed movement (maybe giving encumbrance of 100 or something?) rather than disallowing the playing of movement cards.
I personally like it this way. I hope more priest users see this and use it more. I think Halt is one of the more under-utilized cards.
Hmm... I haven't noticed this myself. That doesn't make sense, if you ask me. You should still be allowed to play the attack portion of the card.
They are both move and attack cards. You are unable to play move cards, thus you can't play step attacks. http://www.cardhunter.com/forum/thr...posed-to-stop-vicious-thrust.1976/#post-21874 However, But that was a while ago so I'm not sure if it's still a consideration.