:night_with_stars:The Nightborne emerged as a new subrace during the War of the Ancients and were isolated for ten thousand years under the protection of a shield created by the Nightwell.
:shield:The Nightborne's survival relied heavily on the Nightwell, as they couldn't sustain themselves without its power.
:crossed_swords:Gul'Dan offered the Nightborne a choice to ally with the Burning Legion or face obliteration, and Grand Magistrix Elisande chose to surrender the city.
:hammer_and_sickle:The night elves, who held resentment towards the nightborne for raising a shield during the first invasion, only helped them as allies of convenience.
:revolving_hearts:The blood elves, who share a similar history with the nightborne, can empathize with their struggles and have accepted them as allies.