A unicorn (possibly “red unicorn”) that is unaligned - i.e. aligned to evil/Moloch. Unspecified if it would behave differently with respect to gems thrown at it.

Since polearms are designed for use against mounted enemies, they get bonuses versus all u and C monsters. Also mounted enemies, if in a variant that has monster riding.

Add pegasi, lawful u-class monsters that fly, have a slightly higher base level than a warhorse, and speed around 25. Might be tameable with vegetables, or only blessed vegetables, or one certain veggy food, though.