A person 'void touched' becomes blind, but can see with their eyes closed up to 300ft even beyond full cover.

Every few days a void touched person will have to make an arcane save; On a successful save nothing happens, On a failed save the person get's corrupted farther.

Stage 1, Eyes; They become blind but have x-ray vision when their eyes are closed up to 300ft beyond full cover.

Stage 2, Arms; Everything they touch they deal 1d4 necrotic damage if their hands aren't covered. Weapons, spells and cantrips they cast also deal 1d4 necrotic damage

Stage 3, Legs; They get an extra 10ft of walking speed, also dealing 1d4 necrotic damage whatever their feet touch unless they're not covered.

Stage 4, Chest; They get an extra 5 armour class. Their blood veins turn black due to the corruption circling through their veins.

Stage 5, Full Body, Their joints start to turn stiff as their unable to move anymore, killing them.