The Golden Trident is a Relic found in Lara Croft: Relic Run. It is the 14th relic that can be found in the Jungle Temple level after collecting 21 clues in the 28 level. (Originally 40 clues in endless mode before version 1.5.68.)
More references to asuras. I know in Hinduism these are a group of deities, and not the good kind, if I remember right.