I was once both a wall that shattered all who sought to topple it and a fist that smote all who would stand in its way. I was once alone on a high summit, peerless even among my peers. I was once something great, now all that remains is gold on a field of purple. I was once praised, once adored, and oft decorated. But once I was scythed down by a dying rose, and just once was enough. Who am I?