From The Bakugan Wiki
Silver is an Attribute found on Bakugan Battle Gear and BakuNano, denoted by their silver highlights. A Silver Battle Gear is most useful on Silver Gate Cards, as they allow the Gear to access any one of the abilities on its Reference Card.
- In the anime, all of Drago's Battle Gear and BakuNano are silver.
- In Bakugan Dimensions, all Silver BakuNano gives Strength.
- In Bakugan Dimensions, all of Dragonoid Colosuss' Battle Gear are Silver, while only two of them are Silver in the physical toy.
- Silver is the most common of the three Weapon Attributes.