Bat God's Forge Mold

 is an artifact-like item only available in Metal Part II content. It can be ranked up with the Dark Metal Ingot reagent and special catalysts and is necessary to eventually produce the ???.

Obtained from

 * Barbatos in Metal Pt. II: Into the Dark Multiverse

Milestone Ranks
Bat God's Forge Mold has a maximum rank of 3 and can be broken through with the following catalysts:

Trivia

 * As the item is upgraded over time it changes its rarity, rank 0 has uncommon and rank 1 rare rarity.