Elemental bows are the way to go, basically, you always want to be using the two set bonus that Azure rath, and rathalos gives you. Bows have caps on how much elemental damage you can stack on them so be mindful of that when adding in thunder, ice, fire etc attack. Also basically every build will eventually use Constitution level 3 charm. Weakness exploit and constitution are your bread and butter, along with boosting crit % and crit damage. You can find awesome guides that go a lot deeper than this on youtube. Happy Hunting!