FAS adds 20 crit, therefore 84 crit really gives you 104
with your current build you die to asura in one shot, FAS in two shots, vulcan in one shot, etc. you're fucked in literally any situation. you'll be burning through seeds faster than you can mash them, and along with mana uses you'll never win any fight. at least with DS you'll be able to sustain even a tiny bit. inca snipers are shit yes, but DS is a lot better in the meantime since they're not entirely useless like your current build makes you. if you're not absolute shit at abusing elements you'll still have pretty decent damage.
yeah, use ship captain for damage. forget it hinders you entirely by allowing you to get stone cursed or abused by cloak all day by any half decent player.