Draekai
Glowing and angry in his 'God' mode but then he says he can beat him with the help of his disciples. I felt like he was screaming Nakama Power. To many good anime and other things have been ruined at the end where MC gets op then suddenly he needs the help of all his friends to win. (Rosario + Vampire and Seven Deadly Sins)
You see...... what we have here is Lilith's mother disguised as on old human woman. She came to this plane to check on MC since MC is her husband who for whatever reason, ended up in this plane in the body of a baby(something happened, and MC is now going through a reset to recover his power and he is in this lower realm to safely grow stronger). Lilith said she was just in this plane to kill everyone, but when MC was teleporting back to his plane, Lilith was stated to be desperately telling MC "Wait Da--". Even without the da part, she was for some reason desperate to get to this plane which to me makes it look like she has another agenda. I'm thinking MC's situation here was planned long ago, and Lilith left information in this plane so at the appointed time, she could come to this plane to look for her father. Side note: I'm just messing around earlier. What I really think is important to note is that the great one referred to MC as a "something". Seems that MC may be someone's creation, an incarnation of something, or something at the status of a great one (in my head, I'd address ancient entities like great ones and cosmic entities as somethings)