Digimon Frontier Episode 29 -

During the clash, Takuya notices that Sakkakumon constantly protects his central orb (which bears the Crest of Light) and never uses it to attack.

Following the apparent defeat of Mercurymon in the previous episode, the group is celebrating the birth of Patamon when Sakkakumon (the Beast Spirit of Steel) is revealed to be alive and active. Digimon Frontier Episode 29

Watch the battle unfold as Takuya and the others face the overwhelming powers of Sakkakumon in this episode recap: During the clash, Takuya notices that Sakkakumon constantly