The Flanged Mace is surprisingly effective at knocking people over, as it is tied with the Spiked Mace as the heaviest one-handed weapons in the game. The weight of the Flanged Mace makes it more effective at blocking weapons capable of crushing through blocks as well as staggering enemies that successfully block attacks from it.
In With Fire & Sword , the Flanged Mace is a lighter, slower weapon that possesses the ability to crush through blocks as well.