Fire: Does not mutate. Crystals: Do not mutate, or if by some twisting of definition you say they do (e.g. defects are propagated through the lattice), the suc

Fire: Does not mutate. Crystals: Do not mutate, or if by some twisting of definition you say they do (e.g. defects are propagated through the lattice), the success of propagation doesn't depend on the inherited traits.