Hecatoncheir (ヘカトンケイル, Hekatonkeiru) is an ancient beast and antagonist in Volume 3. Created when the gods first began making pieces for their war games, Hecatoncheir is known for having countless arms and striking down gods of order.
Hecatoncheir is a massive creature that sports numerous arms numbering at least a thousand, which belies its title as "the hundred-handed one".
Hecatoncheir is a giant beast created during the age of the gods, affiliated with the gods of chaos.
Dark Elf intended on using his cursed artifact to summon Hecatoncheir. When he was forced to confront Goblin Slayer's party the night after the Harvest Festival, Hecatoncheir's power granted Dark Elf five additional arms and the ability to deflect arrows. However, Dark Elf was eventually defeated before Hecatoncheir could be summoned, and in the astral plane, Hecatoncheir was killed by Hero.
- Arrow deflection: The sheer amount of arms Hecatoncheir has enables the beast to prevent arrows from hitting it.
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