Bloodshot Amber

A handful of fist-sized gems, each riddled with red-black intrusions like clotted veins. When you drip blood onto one, name a manifest spirit in your presence and roll +CHA, with disadvantage if the spirit has an intact tether. On a 10+ it is imprisoned. On a 7-9 it begins to be sucked in. On a 6- it breaks free and the amber shatters. A trapped spirit cannot manifest and suffers agony until it is released.