Witch Hunter's long sought the answer to reducing the risk of fighting witches. It was the discovery of Null Catalyst, made from powdered nether star, that enabled them to create a new generation of weapons to combat their foe. Null Catalyst has two recipes, the first is made in a crafting table using a Nether Star, Magma Cream, Flint and a Diamond. The second recipe is made using Null Catalyst, Magma Cream and Blaze Powder. | 