1.An unknown Virus that takes over its host and copy its make up(DNA)
2.Shape shifter made up of some dark matter.(Dark matter has the properties to imitate most matter it comes in contact with)
3.A Character from KOTR know to have destroyed many lives and so far has gained huge amounts of power over the past weeks, so far it has been sealed in some matter made of the same substance of itself, for now....
Blossom was just attacked by Vibrios!