There is a tribe composed of a group of exiled elves. Their former leader was exiled after infuriating the elf queen. After that, the tribe has been wandering blindly through the continents. Their power fades away as they go farther from the spring of eternity.
The elves’ former leader stealthily took a bottle of eternity spring water with him when exiled. With the water, he extracted 6 power gemstones and sealed the gemstones in this Royal Staff. His race was able to survive thanks to the power of the 6 gemstones, though their power was severely crippled and the past glory vanished.
Eventually, the exiled elves constructed their new capital in the north of the continent. They called themselves Revenge Elf, so as to constantly remind themselves of the shame of exile, and of the desire to revenge for the fallen elves.
The Royal Staff was handed over generations, guarding the tribe of exiled elves. The bloodline of the Revenge Elves was carried over, and the tribe of exiled elves gradually evolves into a prominent force on the continent.