1-4a is a card series in Bakugan: Mechtanium Surge.
| Number | Image | Card Name | Color | Card Type |
|---|---|---|---|---|
| 1/4a | .jpg)
|
Advanced Exostriker | Blue | Ability Card |
| 2/4a | .jpg)
|
Advanced Slycerak | Red | Ability Card |
| 3/4a | .jpg)
|
Advanced Mandibor | Green | Ability Card |
| 4/4a | .jpg)
|
Coredegon | Blue | Ability Card |