Shield/Full Guard

"Argh, I fell for it! He made it seem like Full Attack and it was Full Guard!"

- Ken Satori on Kōhei Izumi

Full Guard is the combination of two Shields, one through the main and one through the sub.

Appearance
Full Guard generally takes the form of two hemispheres stacked on top of each other. There is a small gap between the two strata, causing a chromatic difference between the outer layer (lighter) and the inner layer (darker). The more Shields are overlapped, the darker the color. Masataka Ninomiya is the only user of this technique who created two hexagonal Shields.

Abilities
As the activation of two Shields, Full Guard offers high defensive abilities. It can be utilized to intercept Sniper fire without needing to reduce the total surface area, which is particularly useful when the attacker's location is not known. Like a normal Shield, Full Guard can be cast anywhere within about 25 meters of the user. Multiple agents can also overlap their Shields into one, further increasing the resistance of the resulting barrier. Since a Shield is activated both in the main and the sub, it is impossible to use other Triggers while in a state of Full Guard, making it a strictly defensive tactic.

Full Guard can withstand an Egret shot. Masataka Ninomiya and Kōhei Izumi, who have two of the highest trion levels in Border, were able to block an Ibis and a Chelidon beam, respectively. In the former case, only the first Shield broke, whereas in the latter, both were shattered, although the blast was deflected. In normal circumstances, however, it seems to be impossible to stop Ibis even with Full Guard.

Trivia

 * During the match against Tamakoma Second and Suzunari First, Rei Nasu activated two Shields, one in front of herself and one behind. It is unknown if this is considered a case of Full Guard, as the two Shields were deployed in different locations.