Dragon Ring (The Steampunk Adventures of Sorcerer's Apprentices)

Merlin's Ring, also known as the Dragon Ring, is a magical ring that belonged to the legendary sorcerer Merlin. It was responsible for both Raido and Tlob having their ultimate powers awakened at start of the series.

Appearance
Merlin's Ring is about two inches long, in the form of a winged dragon. It is silver with a round, green gemstone on its back.

Powers
Like other known catalysts, it's powers are enable the inexperienced sorcerers/sorceresses to use their magic until they no longer need the ring anymore. This was due to magic inside the ring enable the sorcerer/sorceress to gain more proficiency over their magical powers, as the more they use it, more experienced they are with the said magic. If they finally able to use their magic without the catalyst like the dragon ring, the ring would amplify their already powerful magic several times.

However, it's true power is to directly awakened the magus' dormant powers to manifests ethereal exoskeleton as well as control the forces of nature. It's unclear how he designed the such power within the ring, but this was something that Merlin himself never wanted to share, even with his trusted apprentice. Although, from Balthazar's reaction when he see the huge devastating explosion that causes Raido and Tlob awakened their powerful abilities, as well as Fletcher's research regarding the power within the ring, and how Raido triggered the ring's explosion, it seems that how it awakened the magus' said powers was by absorbing energies from any nearby energy source around it and concentrated them onto nearby magus(es). This process will kill any non-magus lifeform around them due to their energies are forcefully extracted and worse, catastrophic explosion due to immense magic that the ring absorbed during the process. This can be done by overloading the gem within the ring.

After learned the ring's devastating power from Fletcher, Raido chooses to never use the ring anymore as he afraid that he may accidently kill thousands lives with it.