Prime Sentinel
Prime Sentinels are an advanced type of Sentinel which exist in Marvel Comics. They are a human/machine hybrid that uses nanotechnology from the "Days of Future Past" future.
Creation
The Prime Sentinels were created when Bastion initiated the Operation: Zero Tolerance program. These Sentinels were actually humans who had been fitted with cybernetic nanotech implants which, upon activation, transformed the humans into armored beings with powerful weapons systems. These altered humans set up as sleeper agents, unaware of their natures until a signal from the Operation: Zero Tolerance base activated their programming. These Sentinels were used by Bastion to capture Professor X for his own purposes, as well as attack various mutants associated with the X-Men across the country. Bastion and his Prime Sentinels were eventually defeated by the X-Men with help from the government agency S.H.I.E.L.D., who shut down Operation: Zero Tolerance.
Powers and abilities
Prime Sentinels are equipped with several technological superpowers: flight, super-strength, and force-blasts as well as being able to dampen or disrupt the powers of mutants around them. They have combat computers, which allow them to compensate for surprising events (say, the arrival of police cars) faster than normal humans. Finally, their programming may use the natural personality of the host to lull unsuspecting targets into conversation, at which point they dampen their powers and kill them. Omega Prime Sentinels, like Karima Shapandar, are equipped with some level of electromagnetic powers, but these were apparently prototypes, as their designs are clunkier than other Prime Sentinels.