Paladin Troopers are the royal guard of Darth Trepid's Empire. They are cloned soldiers from Trepid's own DNA that have been augmented with a metal endoskeleton, various cybernetic parts, Force alchemy, and lots of care. (Trepid may be evil, but he does care about his work.)
That is only what's inside the armor. The armor itself is Beskar, or Mandalorian Iron, that Trepid also used Force Alchemy and Force Technologies with to heavily augment the metal and make it self healing, and able to sustain the wearer. It both feeds off and provides feeding to the wearer, though a little bit painful. It absorbs through the Force energy around it to provide for both itself and the wearer. It is completely lightsaber proof, except for the visor, which still is highly resistant.
They are then equipped with Paladin Staffs. These are lightsaber resistant staffs with a wide, short lightsaber blade on top which can be shot out at enemies. They also have on the reverse end the bottom of an electro staff. Finally these staffs can produce a large shield in front of the trooper, making them invincible to even things that could normally pierce their armor, and to fully shield those they are guarding from shots that could get past their limbs.
They also carry a unique pistol that uses a lightsaber crystal to unleash devastating energy. It also has on either side of the main barrel spikes that can shoot a bolt of force lightning as a stun weapon.
While they serve like drones they have advanced intelligence to execute their orders. While these are the most overpowered troopers Trepid has, he has very few. He clones them in batches of three with an extended life span, which also makes them take longer to mature. Then it takes him almost the amount of time for them to mature to create their armor and weapons in his spare time. Between the extended life span and the Force Alchemy, each trooper can live for about a millennia.
During the time of the Way of the Force series I've been creating, don't forget to check it out, he has a total of 13 active Paladin troopers, with another 15 retired (Though still very, very strong). They have great retirement plans being that he considers them apart of him, so long as Trepid doesn't need an organ transplant.