Basher is nice on heroes that have high attack speed. Mort, Lycan (in wolf form), Bear (both the real and spirit), Riki and AM come to mind, though I'm sure we can all think of other heroes who can greatly benefit from this.
"Amateurish. Nearsighted. A waste of my time and everyone else's." —Indra, nullmage of Vectis (Punish Ignorance)