Siege

Siege (包囲 Hoi) was a mindless being created by a clone of Commension, who was sealed away in a box by Lucas years before. However, it landed on the Sacred World and was freed by Alice, releasing the monster, setting a course to Earth to cause chaos. Easily overpowering Silver and the others, he was stabbed in his power core by Keichi Haven, before being killed by Silver's Overdrive move.

Siege is the main antagonist of Silver Gaiden: Earth Bound.