Beast Cleave

[Libertarian]

How exactly does this work?

Does it hit targets 360 around your pet? Or another arc degree like 180 in front of pet? Or is it based on the multi shot target?

And what is the range of it?

[Spiralphoenix]

360 degrees, centered on the pet.

http://www.wowdb.com/spells/118459-beast-cleave

Radius/range is 8 yards (follow the link).