Thanks. I forgot to mention the visual:
Sort of like Godzilla, with his glowing plates, this behir has a set of sparks start at the tail and move up to the head. Since it can use lightning underwater (as a supernatural effect), this makes all kinds of wierd lights in the mirky water. The behir can even cause the effect without spitting lightning- a good fish and human attractant. Players screaming in terror as they know what is about to happen to their poor PCs the second time they see it.
Another idea I had recently has to do with a new technique developed by goblin shamans. They kill warriors and then make them into spirits (using that template). With an invisible army that can materialize just about anywhere, "civilized" races would be put to the sword.
Sort of like Godzilla, with his glowing plates, this behir has a set of sparks start at the tail and move up to the head. Since it can use lightning underwater (as a supernatural effect), this makes all kinds of wierd lights in the mirky water. The behir can even cause the effect without spitting lightning- a good fish and human attractant. Players screaming in terror as they know what is about to happen to their poor PCs the second time they see it.
Another idea I had recently has to do with a new technique developed by goblin shamans. They kill warriors and then make them into spirits (using that template). With an invisible army that can materialize just about anywhere, "civilized" races would be put to the sword.