Max out the attack (4 arrows + lvl 9), max out defense (4 arrows + lvl 9), get 100% critical chance, 20 speed (you won't need more). Afterwards just invest into defense.
I like speed + reproduction and aggressive attacks (directly attacking the main enemy cell):
micE incR repN lovE aflP runR cooK poweR theF leeB fasT speB booM
And w/e colors you want.