Neutrals, who are they?

Wolves are the most ferocious creatures (a paradox, though) at their level.
Water elementals are also decent.
And, of course, Death Knights.
But I don't like Phoenixes... they're bad. :)
There's nothing special about Manticores.
Mummies are okay...
I haven't seen Yetis...
Air elementals aren't very good... they're too weak.
Earth elementals are very good for defense (where can I get them, though?).
Fire elementals are nothing special.