I don't really understand what you're looking for, but here are my suggestions. Also, good job with the misericorde desription.
Misericorde wrote:Chaces are, if you're stabbing or being stabbed with it, the knife being used is a Misericorde.
Some kind of spiked fist gauntlet. It's main use would be by knights to scare and beat unarmoured foes. More like a secondary/special weapon than one carried into battle.Suggestion 2:
Handcannons. Suggestion 3: