Yeah, but that’s not a sentient form of him. He wasn’t actually trapped in the Digiverse as a virus. A form where he can actually combat people and be in the field, not as a spirit. Also, the Overlord can utilize his powers if he’s not in possession of someone or something.
For me, I just choose Raiden. He’s powerful enough to survive and deal a lot of damage to any of his forms. Raiden is originally supposed to be the strongest character in all of Mortal Kombat, anyway.
Makes sense. Shinnok is the strongest villain in all of Mortal Kombat, anyway. He can outclass Shao Kahn, Shinnok, Onaga, Geras, Cetrion and maybe even his mother, Kronika.