Crafting Your Power — From Blueprint to Diablo 4 Items Ability5.1 Step-by-Step to Building a SpellOpen the Spellcrafting Interface. Choose an available Catalyst. Assign an Infusion—the spell now deals elemental damage. Apply an Arcana to add unique utility or effects. Preview the description. Craft to consume the materials. Assign it to your action bar, replacing or augmenting a...