Dr Trickster

SCP-XXXX is the designation given to a humanoid reality bending punk rocker from outer space (SCP-XXXX-1) and his organic flying van (SCP-XXXX-2).

SCP-XXXX-1 has the ability to pick up things commonly said about any sentient entity and make them real. This effect covers physical and psychological properties of the affected entities, and the produced properties can be anomalous, but the effect doesn't apply retroactively and can't alter the past. He hasn't got a total grip on this ability, but he activates it at will when within 2 feet from someone. The problem is, he has to know who he's supposed to target as wading through the threads of opinion attached to people in ideatic space is time-consuming and slow. He needs precise knowledge of what he's looking for.

Now, this is interesting, but where's it gonna go? Well, you see, SCP-XXXX-1 (let's call him Draash) is on a mission. His world is oh-so-mundane and terribly boring! A true space dystopia. Unfortunately, people just don't make jokes anymore and very rarely say anything hyperbolic. For a member of a resistance movement with the power to make a real hero from legend, this is very disappointing. But there's another way! A planet with a fascinating culture named Earth. The perfect mythological breeding ground. Draash and his pal, Sgaar, head on over to Earth in their flying van, with Sgaar being the pilot, as he can become part of the van (as one does). They go through a few unsuccessful attempts due to the hard-to-control nature of Draash's powers. They make Elizabeth II immortal, but also an evil reptoid and are promptly forced to escape. Similar things happen a couple times before and after this until they're finally captured by the Foundation.

The Foundation is unaware of Sgaar, who assimilates into the van and lies in wait. There would be an interview log with Draash, who tells the Foundation of their previous attempts so they can neutralize them. He refuses to say who their intended next target was before capture, so the Foundation compiles a list. Some testing is done on his powers, etc.

Foundation guards are terribly gossipy and they don't really pay attention to who hears them. All it takes is for Draash to pretend his range is smaller than it is and he can catch one of them off-guard, make him so forgetful he might forget his head if it wasn't attached to his body, then steal his clearance keycard without him remembering and initiate a containment breach. Sgaar activates the van and bails his buddy out and they immediately head to their next target… the one and only Chuck Norris.

I think I'll have a CCTV footage transcript of Chuck Norris fighting alien home intruders only to be convinced to join them and become an indestructible super warrior for justice. They fly away with him to their home planet and set out onto a wonderful adventure, quickly escaping the Foundation's reach. Obviously, I'd have great material for a tie-in tale.