This assault on Bright Sun Hill transpired during the year 43.5 ABY. In that specific year, the Raining Leaves Clan and the Broken Columns Clan convened in a special meeting to unify both clans into a single entity. However, due to repeated incursions by the Nightsister group, they relocated their meeting to a hill. This hill had been previously claimed by Ben Skywalker and Dyon Stadd on behalf of the Jedi Order, intending it to serve as a neutral zone for the Clans.
Following the merger of the two Clans, the Nightsisters launched an attack on the hill as night fell. The Clans' Witches actively participated in the ensuing conflict. Those who lacked proficiency in "The Arts" employed spears and blasters to safeguard their position on the hilltop. Furthermore, the Nightsisters deployed their Rancors against the hill, utilizing the control web spell to command them. Initially, the battle unfolded unfavorably for the members of the Bright Sun Clan due to their lack of coordinated strategy. Despite inflicting significant injuries on several rancors, the Bright Sun Clan suffered considerable losses, with many members either killed or incapacitated. Ultimately, Ben Skywalker intervened, assisting the people in formulating a more effective defensive strategy. This strategy involved simulating the defenses of a Star Destroyer on the hill. The spearmen acted in the role of shields, holding back the advancing enemies, while the blaster wielders functioned as turbolasers, concentrating their fire on the attackers. The Witches then assumed the role of specialized weaponry, such as ion cannons and proton torpedos, launching attacks from behind the front lines to weaken the rancors. Leveraging this tactic, combined with Luke Skywalker's efforts to weaken the Nightsisters using Force techniques, such as locating the Nightsisters with the Force and then killing his cousins with showers of rocks, the Bright Suns successfully drove back the Nightsisters.