Reptak serves as the primary Guardian Bakugan of Gunz Lazar. This Baku Sky Raider features an elongated body structure with scissor-like blades on his wings, enabling unexpected strikes and precise cuts through opponents. This design contributes to his reputation as a cunning combatant who employs crafty tactics in battle. His first appearance occurs during a battle tournament where he aids Gunz against opponents like Pyrus Damakor and Radizen. Their partnership is disrupted when Gunz vanishes after an attack by Mandibor, Exostriker, Coredegon, and Slycerak. During Gunz's absence, Reptak temporarily allies with Dan Kuso and the Battle Brawlers, participating in battles against threats including Wiseman and rogue Mechtogan. A key combat role involves combining with Fusion Dragonoid to form Aeroblitz, a fusion warrior amplifying their collective strength. Battle Suits like Doomtronic and Combustoid facilitate this combination during critical confrontations against adversaries such as Gliderak and Scorptak. Reptak experiences intense turmoil upon suspecting Wiseman might be Gunz, leading him to confront Tremblar alone. This suspicion strains his loyalty, causing distraction and guilt. Despite initial defeats, he reconciles with Gunz after learning Wiseman's true identity is Coredegon and after Gunz reappears as Wiseman 2.0. Their renewed partnership culminates in creating Chromopod, a Mechtogan born from their synchronized energy during the battle against Mechtavius Destroyer. In combat, Reptak deploys specialized techniques: - Spar Hook (Spark Hook) and Grapple Buster for offensive maneuvers - Eyes Shield to detect invisible opponents - Reptak Cannon and Thunder Volley for energy-based assaults - Shining Shield to weaken adversaries - Mega Harvey Cannon to transfer opponent energy. Attributes influence his physical game statistics; the Pyrus BakuSpark version has 1010 Gs, while Subterra and Ventus versions offer distinct G-power enhancements through BakuSnap add-ons.