Is Beast Walkers legal in Standard, Modern, and Commander?

Beast Walkers is legal in: Legacy, Vintage, Commander.

Beast Walkers

Q: What type of card is Beast Walkers?

Beast Walkers is a Creature — Human Beast Soldier. Its oracle text reads: "{G}: Beast Walkers gains banding until end of turn. (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.)"

Creature — Human Beast Soldier

: Beast Walkers gains banding until end of turn. (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.)