First of all I suggest going blood path once you are 20, as it is VERY useful! If you want to be defensively oriented focus more on sta and agi, but remember to not neglect your str and int, and if you want to be more offensive pump most into str,sta, and int, with a little agility. Heartsblood crafted armor is very good for tanks for 28+. Just build your character along what you enjoy the most, whether it be tanking or soloing. Oh and I suggest getting either werewolf, werebear, or werelion as the buffs they give are EXTREMELY useful!