I have my suspicions it could be Midgardsormr. I have a feeling that he will become convinced to bet on the Warrior of Light. I'll be interested if it comes at a cost to him. Perhaps the reason he is the size he is, assuming it was him, could be because he is reborn early. It would certainly seem a downgrade for him and it doesn't look like he's going to just be stepping in on our behalf and solving everything.