I have Wandering Spirit (band to a generic demon) banded to Fallen Angel (band to a demon) who bands Terrifying Beast (Immune to blue, may band to a Roman Emperor) who is banded to Emperor Nero (immune to lone heroes). My opponent is attacking with Joseph (RoA) and plays Joseph Before Pharaoh (If used by a son of Jacob, negate opponents evil or neutral card. If it is a human, capture to an opponents land of bondage. If not, put it beneath opponents deck) on Fallen Angel.
Can he play it? I say no, because my bad guys are immune to Joseph from Beast and Nero, and he has to take out the immunity first. I'm just not sure.