The Drakesword is a weapon used by Taven in Mortal Kombat: Armageddon.
Though it is not one of the blades left behind for him by his father Argus, Taven wields it throughout the game until his battle against Daegon. It should be noted that the Drakesword left behind for Taven was taken by Daegon, who uses both his and his brother's Drakesword.
During the Arctika stage of Konquest mode, Taven finds a blade that looks similar to the Drakesword. He then uses it to fight off a small army of Lin Kuei warriors.
Taven discarded this sword when he defeated Daegon and took back his original Drakesword to defeat Blaze.
Gallery
Taven's Drakesword in MK: Armageddon
Taven's Drakesword
Taven in kombat with Kobra using his Drakesword