Hazrat Mahdi (as) will have the same facilities the dajjal (anti-messiah) has. While the dajjal (anti-messiah) will use them for evil and corruption, Hazrat Mahdi (as) will use them for the Truth
He (dajjal [anti-messiah]) will have paradise and hell with him. ... HE WILL ALSO HAVE MEN. HE WILL KILL SOME OF THEM AND THEN BRING BACK TO LIFE.