Western Animation: Dragons II: The Metal Ages

Dragons II: The Metal Ages is a 2005 television animated adventure film, and the sequel to the 2004 film Dragons: Fire & Ice.

The movie starts with Scylla, high priestess and queen of the Odaku army, writing strange symbols on the surface of a mountain. Using these symbols and a magic fire, she summons Shadow Dragons Gryndel and Daakon, the spirits of two evil dragons who were exiled from their world by its king. She offers to open a portal to the Dragon Realm if they aid her in battle against the Norvagen and Draigar... and you can tell where this is going.

Has nothing to do with DragonForce.

Dragons II: The Metal Ages contains examples of