Flail

To use the flail right click to throw it. The ball will follow you where you go, right clicking it again will swing it. Every swing decreases the item's durability, so swing carefully. You can make one with wood, stone, iron, diamond and gold. Iron deals 4 hearts. Diamond deals 5

To craft one you need Two sticks, Two Strings, And last is wood, gold ingot, iron ingot, or Diamond.