You can do anything you want really, there's no right or wrong way of distributing points. Basically a coon has 3 categories of skills- card skills, metamorphosis+wild nail, and impelling rage+power charging.
Card skill damage is based on AP and HV (and LK as well for Full House). Metamorphosis boosts HV, and wild nail does damage based solely on HV. Impelling rage and Power charging are AoE skills that deal damage based on your HP.
So basically, the primary stats a coon needs are AP and HV, secondary stats being HP and LK. You can distribute points depending on what kind of coon you want to be. For example, a melee coon or a coon focussing on maxing out card skill damage would go pure AP. A coon who wants to enjoy high wild nail damage would go pure HV. A coon who wants the best of both worlds could go split AP/HV. Then there are coons who want to maximise impelling+PC damage, and they go pure HP.
Bottom line is, split your points however is most comfortable to you, don't let people tell you "you have to do this" or "this build sucks" etc, etc.
