Gamma World: The Infinity Arc
This feat does not represent a physical advancement of the mutation, but rather an improvement through training and discipline. A mutant with this feat has learned to master her mutations and increase their overall usefulness.
Benefit: This feat will advance a mutation one level, as if the character had taken it multiple times. See the Advancement section in the description of each mutation for information on this effect.
Special: This feat may not be taken at first level. A player may take this feat multiple times.
Source: Darwin’s World d20