Aurumoth, the Shining Seraph or Sulphur Seraph Pokemon (feel free to suggest one of the two)
Black: It will often get lost in concentration searching for mates and aiming attacks. Pokemon that feed on sunlight may nest in it wings for days before it notices.
White: Aurumoth's large frame makes it impossible to chase prey into small areas. It can withdraw its wings and buffet the entrance to flush Pokemon out, but it is not very effective at doing so.
BW2: It can use photokinesis to bend the light around it. However, Aurumoth constantly shed a golden powder, evident in both flight patterns and on battered enemies, revealing its true form.