God of war

The Blades of Chaos were a pair of chained blades fashioned by the God of War, Ares. Ares had these blades made for a servant that would prove worthy of his service. These blades were the first pair of chained blades that Kratos used in the God Of War series. 

The Blades of Athena were chained weapons bestowed by Athena that function similar to the Blades of Chaos. They are the second pair of blades Kratos wields in the God of War series. 

The Blades of Exile are the third and latest set of chained blades wielded by Kratos, given to him by the ghost of Athena in the beginning of God of War III. The blades replaced the Blades of Athena as his primary weapons, as the latter, which he received upon his rise to God of War, were completely ruined by his fall into the River Styx. The new blades also have a slightly different design, but their model does not change as they level up except for the amount of "flames" the blades emit when used. 

The Claws of Hades were chained weapons formerly utilized by the God of the Underworld, Hades. They were later procured by Kratos after the former owner's death. 

The Nemean Cestus is a weapon seen in God of War III and briefly in the multiplayer of God of War: Ascension. They are a pair of large metal gauntlets, each forged to resemble a snarling lion's head, that greatly increases the strength of its wielder when worn. The Cestus was apparently given to its original owner, Hercules, after he slew the Nemean Lion as one of his 12 Labours, their relation to the beast itself is relatively obvious as it shows lion's face and the paws of the lion, itself.

In Greek Mythology, this was also used by Helios and Hermes.  

The Blade of Olympus is a powerful weapon seen in God of War: Ghost of Sparta, God of War II and God of War III. It is a large sword with a bluish light in its blade. It was created by Zeus, forged of the Heavens and the Earth during the end of the Great War to banish the Titans to Tartarus and end the brutal war once and for all.