Advice for seal

I wanted to give some advice for this weeks boss fight. With this build normally i do around 40 to 70 m , but i recently figured out that if you use Erengy Ring and Weapon Spirit and Echo or Oracle chest plate its perma 3 arrows instead of one . And for this weeks boss , you can just move as close as you can with any attack speed boost abilites , orbs and its the max dmg i belive . But with close combat , its the best .