New Megabeasts

Desolation adds several new megabeasts. For fun.
 * Trojan Horse: a gigantic living horse statue, made of magical wood
 * Ultralisk: a gigantic monster with chitinous armor and scythe-limbs
 * Jade Destroyer: a life-sized statue of a winged unicorn, made of felsteel
 * Reaper Lizard: a gigantic scaled monster with long claws
 * King/Queen of Blades: a normal-sized humanoid with dark iron plates over its body, as well as claws and teeth of this material, master-level fighting skills, and a breath attack
 * Night Haunter: a large tentacled monster with night creature traits
 * Maidens of Pain, Changeling Queens, Crystal Mistresses and Star Nightmares all have great fighting skills and night creature traits, so that they can reproduce by abducting victims.


 * Witches have an unusual body template (it's a surprise), and they can throw fireballs. They are resistant to weapon materials that aren't silver (or star silver, or mithril).