Wither Blood

The Wither Blood is an Reforge Stone, which can apply the  reforge to any sword or fishing rod, granting.

Obtaining
The Wither Blood can be obtained from Dungeon Reward Chests on The Catacombs - Floor VII and from Necron I Boss Collection.

Requirements
The Wither Blood requires level XXX (30) to use and can only be applied to Swords and Fishing Rods.

Trivia

 * The reforge gives the most  in the game.
 * This reforge combined with a Flower of Truth gives the most strength in the game.
 * This reforge is considered the best in the game, overshadowing the previous best: on the majority of weapons.