I found animation error in Bakugan Gundalian invaders episode 21,in this episode at the beggining Drago is Pyrus Helix Dragonoid,and not Pyrus Lumino Dragonoid that is the drago he was in previous
Drago (Dan Kuso) - The Bakugan Wiki
FanArt - Mrs Phantom (Lumino Dragonoid form) by KunYKA on DeviantArt
Bakugan Colection on Instagram: “Today drawing we have Lumino Dragonoid! -pyrus -aquos -haos -darkus -ventus -sub… | Fantasy monster, Bakugan battle brawlers, Zeref
Titanium Dragonoid 2 HD | Bakugan Battle Brawlers" Photographic Print for Sale by DisenyosBubble | Redbubble