Wait, does the skill turn into a random skill, or does it make it so the cost of the skill is now in ? As for rustler, you can make it so it only activates once per turn. Just like SoR rustler.
Rustler. And Heal.And what else? Endow? Luciferin?Hasten? (sundial)Only 5 skills, and that's even including a permanent skill, which would naturally be excluded. Too situational.
The skills that can result from Insight | Enlightenment are the same ones that can occur from a mutation.