Ideas from Discord:

• Extend/Reduce Invincibility timer on player

wow - i love this idea (having a power system will also balance some of the op nature of these genes too, unsure if mutations should be included unless reworking otaining them)

maybe add fiery aspect? you burn things on hit or others get burned if you get touched, dropped by blaze

Great idea, I already had the following elemental concepts in mind:
Fire - burn things near by
Ice - freeze mobs in place near by
Air - knock back mobs near by
Electric - zaps mobs, and machinery, will set off TNT too
Poison - DOT
Metallic - Immune to magic damage
Earth/Rock - Immune to physical damage
Chaos - Immune to elemental damage

One of the new add-on will be a power system that the genes can draw from. RF can be used, or a more "magical" power crystal, that will be tuned to one of the elements.