You seem loathe to just admit that there are no Scriptures showing Judas cast out unclean spirits.
And he ordained twelve, that they should be with him, and that he might send them forth to preach, And to have power to heal sicknesses, and to cast out devils:
Mark 3:14-15 KJV
These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into any city of the Samaritans enter ye not: And as ye go, preach, saying, The kingdom of heaven is at hand. Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give.
Matthew 10:5, 7-8 KJV
Now this is really gonna knock your socks off, put seat belt on...LOL
remember when you read the follow Jesus is talking to ALL 12
But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak. For it is not ye that speak, but the Spirit of your Father which speaketh in you.
Matthew 10:19-20 KJV
How could the Spirit speak through this devil Judas?