Transform living.

Touch one willing creature (NPC or Character, Includes self.) This turns the Character into the undead listed below. The transformed Character can still rank up (2 normal levels = 1 CR) If a creature has enough CR it can rank up to the next creature (If it wants) It can only evolve during short rests. Lvl 15 Melee Class = CR 12 Vampire      Lvl 15 Magic Class = Lvl CR 12 Mummy Lord        Lvl 19 Melee Class = CR 18 Death Knight      Lvl 19 Magic Class = CR 18 Demilich         Lvl 20 Melee Class = CR 20 Night Walker      Lvl 20 Magic Class = CR 21 Lich                                      The Lvl 15 Druid is the only difference (Normally Druid is in the Magic Class) 15 Lvl Druid = CR 18, Dragonlich