heavy shield --> weapon?
Sorry for such a basic question, but my search-fu is really failing me today ... I want to know how to make a heavy shield a weapon.
Background: Looking at a funny setup for a melee ranger|warden, Str+Wis, and I really don't want to give up shield use. The build requires Hybrid Talent spent on Guardian Might, and I'm worried about my defenses because I'll be making myself a pretty attractive target. Unfortunately, there are few ranger powers that work for a single melee weapon. But if I can make my heavy shield a functional weapon (through item or feat, NOT paragon path), I can delve into all the two-weapon ranger powers.
Can it be done without making the shield worthless as a shield?
Avatar by Meltheim: Eveve, dwarven battlemind, 4e Dark Sun