Made an account just to help with this lol, I love Anduin and really think he should be added. I think that making the fear from psycic scream break on ability damage would balance it. That way it would still protect anduin without being too overpowered in team fights. If that is still too powerful, make it break on any damage. I also think the cooldown should be much longer, closer to 12 or 15 seconds. this is supposed to be more of an emergency ability than something you spam.