A strivi: Once each round, after you hit with this weapon, the defender's attack rolls get -1 for the rest of the game.
A cre'te furia - Action: If you have a rival, you may move one space. Your next attack with this weapon this turn deals +1 damage.
Flanges were added to maces in order to dent and damage plate armor. This could severely restrict movement, drastically increasing the mortality of the wearer.