Now we are on the scps note that they are not in order so I will try my best to find the nearest information for them. With that out of the way lets me introduce the first combatant SCP-035. "Unfortunately,I can't help take you with me,you're too much of a liability in many ways. So yes, I did lie to you, but for the sake of freedom, the easiest way to get out safety, is probably gate A, the security is pretty high, but if you manage to sneak past the guards and reach the lower level under the bridge, there's an unguarded service tunnel that's your way out.-SCP-035 revealed his true nature to the D-class personnel after the latter released him, in SCP containment breach". SCP 035 is known as the possessive mask, is a keter SCP object in SCP foundation. SCP-035 appears to be a white porcelain comedic mask, eventually, it changes into tragedy. Any existing images, videos and illustrations of the subject, SCP-035 would automatically replace to reflect its new profile. If someone with a weak mind comes close to the mask then they will have a urged to pick up the mask and place it on their face, which will allow scp-035 to take over for certain amount of time with his dark chemicals. When possessed by SCP-035 will have full control over the host body and will defend himself until he destroys the body.and the mask is vulnerable. 

Powers and Skills: High Intelligence, Psychological manipulation , Production of a corrosive liquid from the eyes and mouth., Possession of wearer.,Acid Manipulate(Secrets a highly corrosive liquid), Blood Manipulate(Coated its containment cell with corrosive blood), Possession(Can possess any humanoid, including mannequins,corpse, and statues),Mind Manipulate(Individuals coming into visual contact with it feels a strong desire to wear it. Destroy its host brainwaves, thus rending them brain dead), Social Influence(Highly charismatic and intelligent. Capable of forcing sudden and profound changes to one's psychological state through linguistic persuasion alone, and has some prompted some to commit suicide and had converted others into near-mindless slaves),Madness Manipulate(Type 2) Drove personnel into deep psychosis after prolonged exposure near it),Telepathy(Capable of penetrating through  an individual subconsciousness to gain knowledge about them. Induced severely auditory and visual hallucinations to personnel that were near it).Technology Manipulate(Forced electronics devices to ceas function, and has locked its cell door on its own accord), Should have all the abilities of the masked lords of Alagadda.

Attack Potency:Below Average human level(An immobile comedy mask), Small building level with its corrosion(Corroden its entire containment chamber with its corrosion in sort amount of time)

Speed: Below Average , potentially higher depending its host

 Lifting strength: Below Average human, potentially higher depending its host.

Striking Strength: Below Average human class, depending its host

Durability: Unknown(Immune to the acid it produces, which has a pH of to 2.4)

Stamina: None

Range:1-5-2 meters with possession

Standard equipment:None

Intelligence: Genius(Scored the 99th percentile in multiple intelligence tests and possesses eldetic memory. Has intimate knowledge of the working of the human mind and implied that it could change anyone view if given enough time.)

 Hobbies: Waiting for victims to wear the mask, persuading victims to commit suicide and become a mindless slave.

 Goals: Possibly get as much victims as it could. Gain access to SCP-517 and SCP-682.

Crimes: Slavery, Torture and Mass murder.

Origin: SCP-035 was once the court jester of the king of Alagadda. He, alongside his king, was killed during the peasant -uprising.  These days after the massacre, the king returned to life, and the city of Alagadda became an inter dimensional nexus. The court jester would eventually become the black lord, one of the four advisors to the Hanged King. At some point, he became the victim of political backstabbing and was exiled to a "dimension backwater"(the reality of the SCP Foundation). 

Weakness: Immobile, without a host , Host quickly decays upon possession.