Hammerspace

Okay, now just picture what you want to pull out of hammerspace and just reach in and grab it.

...it's a commonly known fact that dust is physically incapable of collecting in Hammerspace, so everything is always looking brand new! I for one would want to keep my collection of--I think it's sixty-four--manga spotless!

I just learned how to take my sword out of my hammerspace, and I'm not afraid to use it.

Each incident involved some implement or skill SCP-6549 could not possibly utilize without additional anomalous qualities, a lack of detail or proper observation of which currently prevents concrete inference from being made regarding its ability to actually carry out said attacks. Usage of telepathically-linked accomplices, ectoentropic nanotechnology, and/or an antimemetic extradimensional hammerspace have not been ruled out as possibility.