Advanced
Chalcedony Key
Item ID 1067
Effect
Gain a combo of either Sturdy, Ember, Glacier, or Magitech depending on the row you are in Deals +2/4/6/8 elemental damage based on the granted combo.
What Chalcedony Key does
Chalcedony Key is a advanced-rarity artifact in Sephiria. In the inventory grid it occupies its own space, and any tablets you place beside it multiply the effect shown above.
Data source
Effect text and rarity are taken verbatim from TEAM HORAY's Fan Kit catalog (game build 1.0.25, indexed 2026-08-11), reproduced for reference. We do not add inferred numbers or unlock conditions that the Fan Kit does not supply.