During the time of the High Republic Era, the Drengir committed a massacre against numerous inhabitants of the Outer Rim planet Daivak. These sentient carnivorous plants, having surfaced in the Galactic Frontier some months prior, spurred the Jedi Order and the Hutt Clan to form an alliance in order to fight them. Jedi Master Avar Kriss, along with the Hutt fighter Myarga Anjiliac Atirue, commanded troops on Daivak with the aim of battling the plant-based monsters. Following Kriss's request for backup from the Starlight Beacon, Jedi Knight Keeve Trennis and Master Sskeer managed to infiltrate the Drengir Root Mind. There, they uncovered the location of the Great Progenitor, who was the original Drengir. This discovery caused the plant beings great suffering, compelling them to withdraw. Consequently, Kriss then devised a strategy to attack the Drengir rootworld, with the intention of eliminating the danger entirely.