Just like there are 2 pet skills for high brain people(flipper smash for lvl 10 and bonecracker for lvl 30)
why not put a new skill that helps brainless people. A skill for lvl 30 : after every crticical hit u suffer ur next attack will cause 50% or 75% more damage.
The new pet can be a cute star-fish which can be found in shop and costs 20 donuts.
I made this suggestion since i have seen that bonecracker has advantage over horribly glib.