The Doomforge allows players to exchange one of the base Inferniarch Set weapons for one of its upgraded versions. Players must visit The Forgemaster after fighting Arbaziloth in its hard mode to be able to exchange one base weapon and the required Creature Products to get one of the upgraded versions:

• Rending: 1x Skin of Gralvalon, 1x Demonic Finger, 100x Vexclaw Talon, 500x Demonic Matter, 50x Demon Horn, 350x Demonic Essence, 350x Flask of Demonic Blood
• Siphoning: 1x Skin of Twisterror, 100x Some Grimeleech Wings, 500x Demonic Matter, 750x Demonic Essence, 200x Demonic Skeletal Hand
• Draining: 1x Skin of Malvaroth, 100x Piece of Dead Brain, 500x Demonic Matter, 750x Flask of Demonic Blood, 50x Demon Dust

Note: tiered base weapons can not be used in the Doomforge, although the upgraded versions can be tiered normally.

Upgradable Items

Name		Weight	Slots	Arm	Atk	Def	Attributes	Resist	Vocations
Inferniarch Arbalest		59.00	3				distance fighting +2	ice +4%	paladins
Inferniarch Battleaxe		67.00	2		8	31	axe fighting +3		knights
Inferniarch Blade		64.00	2		8	31	sword fighting +3		knights
Inferniarch Bow		56.00	3				distance fighting +2	earth +5%	paladins
Inferniarch Claws		84.00	2		43	21	fist fighting +4		monks
Inferniarch Flail		65.00	2		8	31	club fighting +3		knights
Inferniarch Greataxe		85.00	2		8	33	axe fighting +4		knights
Inferniarch Rod		22.00	2				magic level +3, earth magic level +1	death +5%	druids
Inferniarch Slayer		86.00	2		8	33	sword fighting +4		knights
Inferniarch Wand		24.00	2				magic level +3, fire magic level +1	earth +5%	sorcerers
Inferniarch Warhammer		86.00	2		8	33	club fighting +4		knights