One long running piece of advanced comic book tech is Doctor Doom's time platform. As one wise person once wrote, and I can't recall who, the time platform has to travel both through time and space since the earth is constantly rotating. So Doom has to be pretty precise in placing a person exactly where they wish to go. I was reminded of the old legends about
the Philadelphia Experiment from WW II. There really was a project to make our ships invisible to radar but I undoubtedly people took that too literally. The test ship was the USS Eldridge and they were conducted in the Philadelphia Naval Shipyards. Witnesses claimed to see a green glow around the ship one night but this was later attributed to the "St. Elmo's Fire" phenomenon. Other reports claimed that ....
"the Eldridge crew went insane, developed strange illnesses, and even became fused to the metal of the ship. ...conspiracy theorists of course thought it was aliens. And the government holding out on time-travel and light-travel and teleportation… that sort of thing. There were a lot of theories, but none of them were viable (because, physics). "
So what if Doom's calculations suddenly developed a glitch? Instead of traveling to Arthur's Camelot, you might wind up fused to a tree or stone wall of the castle. Interestingly enough, the time platform was used as a weapon once in Doom 2099 #24
So here we see the adversary Tiger Wylde being cut in half with the top part in current time and who knows where the other half ended up. Seems like Doom could set up time platform booby traps if he wanted to. It a way it reminds me of the first Star Trek movie were IIRC they had a transporter malfunction and the unfortunate crew members were killed when the transporter malfunction. I think there was a line that said what came back no longer looked human. Perhaps the same could happen with the time platform.