Yes, a bow made from lightning-struck would, if it can be done, would be a very powerful weapon if one holds to certain beliefs about it. But if a bow cannot be made, the wood can be used to make charms and talismans you would put on your quiver, thus endowing the arrows in it with the power of lightning. Again, if you hold to certain beliefs. Some Native peoples carved the so-called "blood grooves" (aka straightening grooves) as zig-zag lines and these represented lightning. Lightning itself is depicted as zig-zag arrows.
