Undead companions

Characteristics

 * Passive ability: Undead pets return to life immortal for one round when killed, but deal 25% less damage.
 * Takes 150% damage from Critter abilities
 * Takes 67% damage from Dragonkin abilities
 * Deals 150% damage to Humanoid companions
 * Deals 67% damage to Aquatic companions

List

 * Notes:
 * Companions with can battle.
 * Companions with can't battle.
 * Companions with can be traded.
 * Companions with can't be traded.