Tethe Seals

Tethe Seal: Earth/Ice/Lightning/Darkness (裏降晶符・地/氷/雷/闇) is a series of elemental support artes that Sheena Fujibayashi acquires in Tales of Symphonia when she makes a pact with a Summon Spirit. There are four of these seal artes. The Sylvaranti counterparts are the Silva Seals.

Arte Description and History
After a short casting time, these artes let Sheena add the elemental attribute of the chosen arte to a party member. Its use is similar to the Quartz items in the game. It is also the only way beside using a Quartz to get the Dark-elemental attribute. Each of these artes are obtained when Sheena has made a pact with the Summon Spirit representing said element.

Mothership Titles
Tales of Symphonia - Sheena Fujibayashi (Tethe Seal: Earth/Ice/Lightning/Darkness)

Tales of Symphonia
Localized Description: "Support Skill: adds Earth/Ice/Lightning/Darkness attribute to a party member's physical attacks for a time."