It really depends what kind of skills you plan to give your Digrimm and which character you are playing. If you don't plan to teach your guardian any sense skills, then you don't need to get any points there, but if you level your magic up to 6 using MP potion spamming, you will have at least a 2, almost 3 in sense anyway. Just be aware if you're getting any stat to 6 that you will need to get your other stats to what you want first. If any stat gets to 6, your seed gets locked and you won't be able to continue working on it.
Mazuiko & Synkronized (ɔˆ ³(ˆ⌣ˆc)
Te amo! ♥