A good secondary weapon for setting up combos. Useful for farming, as it has two in-area attacks that you can use at the same time, which will deal decent damage and prevent them from being knocked away too far. Low mastery requirements.
YES.You can use slingshots for hunting in survival situation. Slings are one of the earliest form of projectile weapon, and also one of the most effective. Not only they are cheap to manufacture compare to weapons like bow, they are easy to carry, ammo are abundant (rocks, ball bearing, even marbles can be use).