ROTTEN GRAFFITI

ROTTEN GRAFFITI takes the appearance of a wormhole-like entity, stretching approximately 70cm in diameter.
ROTTEN GRAFFITI's primary ability is to generate anything and everything, the user could safely stretch their hand into the portal and think of an object and its properties, and upon pulling out they would have the said thought object in hand. 
Although ROTTEN GRAFFITI is capable of generating 'everything', it is not capable of generating life, other sentient entities, or organic matter. 
ROTTEN GRAFFITI's primary destructive power comes from its neglect to any other entity other than its user, if another entity comes in contact with ROTTEN GRAFFITI, ROTTEN GRAFFITI would gradually engulf the object until it is never to be seen again. Should an object be partially engulfed, it would be missing its engulfed part.
ROTTEN GRAFFITI's primary utilizing power, Square Window, is to allow it's user to transport anywhere through simply entering ROTTEN GRAFFITI, meaning the user would enter the portal, close it, open it at any other remote location, and simply exit.