la masa negra

you are in an apocalypse where there is an infection
When you come into contact with an infected person or black mass, you become infected. This infection acts like a hive mind.
there are 4 stages of infection
stage 1: the infected person begins to have changes in their personality and attitude
stage 2: the infected person begins to have spots of the black mass on his body and acts very strange
stage 3: the infected begins to have more spots of the black mass and now acts completely different (will act maliciously)
stage 4: the body of the infected is made completely of the black mass but still retaining its original shape and its eyes are completely white in addition to not having a minimum of consciousness
In stage 4 the infected can duplicate an amount of the black mass to use as weapons or projectiles and limbs

the black mass