SCP-1121 (Skinning Disease)

A species of amoeboid protozoa that causes
victims' flesh to melt, making them pull
their skin away and transform into an
unknown, hostile menace.
—
You are infected with SCP-1121. You have
one turn to dispel the disease before taking
20 damage each turn until you die. Upon
dying, you become an enemy with the stats
you started with for someone else to face.
—