Syanthazoa is a kind of coral, created long ago during the age of the Old Dominion. It is used extensively to create magical items due to its resonance in the Loom and its ability to survive within artificial constructs for centuries. Most automatons use syanthazoa as the focus for the magical knot required to animate them, and most magical focuses used by sorcerers and wizards incorporate the coral.
The trade of syanthazoa is highly regulated. In Ackenzal, only the church, chartered academies, and specialized guilds have access to syanthazoa. In Thassal the coral’s use in the construction of phylacteries makes it such a crucial aspect of maintaining Thassali culture that private possession of it is illegal.