Gurunium

Gurunium (グルニウム guruniumu) is a powerful energy ore, discovered by Doctor Minakaze.

Fiction

Toy bios

Victory Leo possessed the "super-energy" gurunium. Victory Leo bio

Victory comic

Gurunium was used to create Victory Leo's body, making him and Victory Saber powerful enough to merely laugh at being shot by the Living-Metal-Destroying Cannon. The Strongest Pair, the Combination of Victory!

Spacewarp's Log

The bugboy tribe of Inner Pellucidus stockpiled gurunium in their war against the Valkyrie tribe. However, the Valkyrie-aligned Cybertronians Chromia and Spacewarp intervened in the Moldavite war, bringing about a peace accord between the tribes. Chromia and Spacewarp proceeded to use the gurunium to trigger the opening of the passage between the inner and outer zones of Moldavite I in order to leave. Spacewarp's Log (2), 2015/11/14

Notes

• "Gurunium" probably comes from the Japanese onomatopoeia for growling, gururu (グルル).