The Altar at The Serpent's Heart is an important location in Enkanomiya for several quests and for exploration. It is first used in the World Quest The Heart of Ouroboros. It is used to enter in Altar Patterns to obtain rewards or advance a quest.
An Altar Pattern consists of the five unique Key Sigil types in a circle along with a number associated with each of the five types.
Enkanomiya must be in Evernight to use the Altar.
Each Altar Pattern consists of the five Key Sigil types with an associated number from one to five — this corresponds to the blue panels at the altar. Go to the altar and enter each panel in the order of those numbers. After successfully applying the pattern to the altar, something will spawn, whether it be a chest, an NPC or enemies that when defeated will spawn a chest.