L_Ender's Cataclysm Weapon Fusion Recipes
Weapon fusion is Cataclysm's signature crafting system: it combines two powerful items into a single stronger one. This guide lists what fuses into what.
How fusion works
Fusion takes a base weapon or tool and a second component, and returns an upgraded result — you are spending two hard-won items to make one better one, so choose combinations that match your build.
Fusion recipes
Brontes — an 
Infernal Forge fused with 
Astrape.
Void Forge — an Infernal Forge fused with a 
Void Core.
The Immolator — 
The Annihilator fused with an 
Ignitium Ingot.- Void Assault Shoulder Weapon — a Wither Assault Shoulder Weapon fused with a Void Core.
Gauntlet of Bulwark — a 
Gauntlet of Guard fused with a 
Bulwark of the Flame.
Gauntlet of Maelstrom — a Gauntlet of Guard fused with a 
Sandstorm in a Bottle.- Wrath of the Desert — a
Cursed Bow fused with a Sandstorm in a Bottle. 
Ignitium Elytra Chestplate — an 
Ignitium Chestplate fused with an 
Elytra, combining flight with the armor.
Planning your fusions
Several recipes consume a Void Core or a Sandstorm in a Bottle, so plan which upgrade you want before spending a rare component. The Ignitium Elytra Chestplate in particular is a defining craft, letting you keep elytra flight without giving up heavy chest armor.
Fusion is eight recipes
Weapon Fusion carries exactly 8 recipes, identical on 1.21.1 and 1.20.1. That small number is worth stating plainly: this is not an open-ended combination system but a fixed list of eight results.
Alongside it, Smithing Transform holds 9 recipes, so the mod's complete gear-upgrade path is seventeen entries.
Where the inputs come from
The mod places 15 structures, and the materials for fusion are boss and dungeon drops rather than craftable items. With 116 crafting recipes against 155 items, most of the item list simply cannot be made.
That means fusion is gated on exploration, not on production — no amount of mining substitutes for the fight.
The odd one out
Amethyst Bless is a one-recipe category standing apart from both fusion and smithing. Locate it in a recipe viewer rather than expecting to find it in the crafting list.
Version note
Fusion and smithing counts are identical on both builds (3.33 and 3.31); only stonecutting differs, at 72 recipes against 51.