The one on the top is a bakusteel sub-terra ingram with the bird mask flipped up. The bottom is a plain darkus ingramwith the mask flipped down.You must have not done anything bakugan related for a while XD
I'm sure you get ALL of those B1's $5.00. Physically impossible if you use eBay./ontopic I'm not sure if you're questioning the mask (Which Lux explained), or if you're question the tail.