The Stringless

The Stringless is a very powerful and viable 4-star bow for many archers, it can even rival some 5-star bows. It gives us Elemental Mastery and most importantly, a very interesting damage bonus for Elemental Skill and Elemental Burst.

It's an almost mandatory weapon to have in your account and if you don't have it in R5 you should try it because it's very much worth it.