A mace is a blunt weapon, a type of club or virge that uses a heavy head on the end of a handle to deliver powerful strikes.
In Mortal Kombat
Several of Shao Kahn's Extermination Squads wielded versions of these weapons.
In Mortal Kombat 11, guest character Spawn uses a modified mace alongside his sword and battle axe during gameplay. It is also used in his Soul Shattering War Club special attack which allows Spawn to break forms of armor the opponent can use against him. He also uses it during his Forward Throw.