Sure!
It's a bit cartoonish, and not were warcraft-like in style, but you can fix that. Add a bit of texture and use less blend, to make it more rough. High contrast is also something that is used a lot in warcraft icons.
Overall, the icon looks nice
You should just define the sword more, so that it stands out, since right now the sword and mr. Pit Lord kind of blend together a bit.
So paint a shadow behind the swords upper part so it overlaps the pit lord. Just like a dark glow. And you can always set that layer to overlay or multiply, since that will probably make it look better
good luck!