Magical ichor

As Savage Opress undergoes a transformation, the Nightsisters employ their enchanted ichor. Spirit ichor, also referred to as magickal ichor or simply magical ichor, manifested as a radiant green vapor originating from the depths of Dathomir. The Nightsisters, a group composed entirely of female members, possessed the knowledge to summon this ichor through their magicks. They then used it to materialize objects from seemingly nothing.

Shamans, such as Nightsister Mother Talzin, could manipulate magical ichor. Talzin demonstrated this ability by crafting a goblet made of blackroot using the ichor. By immersing a kyber crystal in the ichor, its attunement to the Force was corrupted, resulting in the creation of a Tainted Nightsister Crystal. When these crystals were incorporated into a weapon resembling a lightsaber, they emitted green smoke upon activation. Talzin also conjured a sword from ichor, which she wielded in a duel against Jedi Master Mace Windu.