Voidtouch

*Unique to Sunderwake.* Your hand flickers with absolute darkness; not shadow, but the absence of everything. The air around your fingers grows cold and silent, as though reality itself recoils from the contact. Make a melee spell attack against a creature within reach. On a hit, the target takes 1d10 necrotic damage. If the target is a living creature (not a construct or undead), it must succeed on a Constitution saving throw or have disadvantage on the next attack roll it makes before the end of its next turn, as the Void's touch numbs muscle and deadens nerve. Where your fingers make contact, the target's skin briefly turns grey and translucent, the veins beneath visible like dark rivers. The discoloration fades within seconds, but the cold lingers.