What passive abilities are out there? Swarm, devourer, chimera, poisonous, voodoo, mummy, and undead. Did I miss any? Only things I see really useful with this is to keep devourer ability and perhaps to see your crimson dragon swarming with scarabs and having more health. The problematic thing I see is voodoo. When your voodoo doll dies, the voodoo ability is instantly transplanted onto another creature, so you can keep abusing the voodoos.