This creature has banding as long as you control a Plains. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

"It's amazing how scared a city kid can get at a dog. Now, of course, I'd cross Terisiare alone, and keep no watch if I had a pack of greys hanging on my flanks as I went." —Oddveig Ulfsson, caravan scout