This just in from Spin Master -

“Each player needs 3 Bakugan, 3 Gate cards: one of each color, (The Gate cards are heavier than the others and make the Bakugan open.) and 3 Ability cards: one of each color.

http://www.bakugan.com/en/learn-to-play/media/Bakugan_Rules.pdf”

- So much for our “Green Meanie” tuned deck.

But in this URL, they say you can choose the same attribute:

“http://www.bakugan.com/en/learn-to-play/article2.html”

So, maybe we are back in the mix?

But wait, there’s more…

In another link. in reference to the Gate Cards, they mention Silver, Gold and Copper colors:

“http://www.bakugan.com/en/learn-to-play/article3.html”

In this case, look at the lower right hand corner of your Gate Card

Cards 1-8 are Silver, 9-16 are Gold, and 17-24 are Copper.  In the Booster Pack, Cards 1 and 2 are Silver, 3 and 4 are Gold, and 5 and 6 are Copper.
So if we think we understand the rules, a Bakugan Battle Brawler arsenal must contain the following:

3 Gate Cards: 1 Silver, 1 Gold, 1 Copper
3 Ability Cards: 1 Red, 1 Green, 1 Black
3 Brawlers (3 different attributes or the same attribute, depending on which article you are reading).
Bloggers: What do YOU think?  Rules change as new Brawlers and cards come out, but until they do, what would you like to see?