Technology & Combat Characteristics
A heavily modified version of the MSF-007TE Gundam Tertium created by Alus to serve as part of the One-Eyes forces. It departs greatly from ordinary customization rules, resulting in a strange silhouette with a massive monstrous right arm as the "Seltsam" in its name implies. This monstrous right arm, as well as part of the head unit, such as the oddly-shaped left antenna, served to keep its brainwashed pilot, The Masked Man, under Alus' control and to bind him to Eldora. In battle, the Gundam Seltsam displays demonic strength that far transcended the limits of common sense. It is able to face the BUILD DiVERS alone, making it one of the greatest threats for Hiroto Kuga and his friends.
History
The Gundam Seltsam battled the BUILD DiVERS several times, causing the group to wonder how the One-Eyes can create such a powerful unit. Later, the One-Eyes attacked a village, and the Gundam Seltsam suddenly turned against its allies to save two village children from harm. This showed that its pilot, The Masked Man, was trying to fight against the brainwashing by Alus. Eventually, the BUILD DiVERS devsied a plan to save The Masked Man, but the group was forced to adapt when they found the One-Eyes forces attempting to subdue the rogue Gundam Seltsam. As the battle progressed, the Gundam Seltsam started going out of control and changed into a monstrous form with organic, tentacle-like parts sprouting from all over its body. With support from his BUILD DiVERS teammates, Hiroto Kuga and his Saturnix Gundam managed to rip out the Seltsam Arm, freeing The Masked Man from Alus' control and defeating the Gundam Seltsam once and for all.