Hephaestus' Sigil (Summoning Key)
Forged in the smith-god's own fire, the Hephaestus' Sigil is whispered to call Hephaestus himself up from the forge — a rare find few ever hold.
The rest — what he does with it, and what he leaves behind — is left for those who earn it to discover.
Sigils stack like any other item, and a stack you split in your inventory or your vault now stays split.
There is a second, separate relic for his Uber version: Hephaestus' Unquenched Brand, which goes into the same altar and calls Uber Hephaestus. It isn't a Sigil upgrade and isn't forged from essence — see Uber Bosses.
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