The evil Terriga, who appears in the theatrical version of Terrija, already knows his human form, is Ryuichi Shioka, the acting captain of the Elite Victory Team. Captain Tokioka had also participated in the study of the Divine Light Rod, which showed that he was a relatively trusted person in Shizuma Mitsukuni. Unfortunately, Captain Tokioka took the wrong path, encroached on darkness, and threatened the universe.
The human body transforms into Ultraman, which requires a transformer.
Libut guests as Trigal, explaining to everyone the role of the transformer, allowing the human body to liberate the power of light and become Ultraman. This also means that people who do not have the power of light themselves are useless in using a transformer, and without the power of light, they naturally do not talk about liberation, let alone become giants of light.
Saint Shōren was so good at studying the Divine Light Rod and the Otter Sacred Key, but he could not transform into a giant of light because he did not have the power of light himself. When Ignis gets the power of the Black Trigger, he can transform into the Black Trigger. Even Keigo Nakanaki uses the light genetic particle converter and the divine light rod he made to turn himself into light.
So, how did Captain Tokioka get the power to transform? There are two possible scenarios.
The first is the Bronze Divine Light Rod. Yusari had said that the Bronze Divine Light Rod was an artifact that could collect the light of the stars. Captain Shigang may have used the remaining power of the Bronze Divine Light Rod, or collected the light of the stars again, and gained the power of the light, but after being transformed, because of the evil heart, he was blackened into the evil Triga.
The second is the Otter Key. In the stills of the Thetrical Version of Telica, Sword Goku did not have the Otter Sacred Key on his belt for a while. The Otter Sacred Key is also a prop that hosts the power of Otter, if Captain Shigang extracts the power of the Otter Sacred Key, and then uses the research of the Sacred Akira, is it also possible to get the power?
There are always more ways than difficulties, and in order to gain strength, Captain Tokioka can definitely come up with a way.