Ok, I'll explain Simon's role in this. He's with sans. Always. If sans is the bad time character, so is he. He's a nyehehe, so is he. King? Caretaker? Lost prince? Fallen Human? Yep. Right beside him. Sans is gone? It's all Mario characters? He's beside the original bad time character.

His powers are bones, cyth, blasters, telaporting, blue and vision blur

I want to mention deltarune, simon is with sans, and jevil. They're from different points in time. He has the same powers of jevil to. He follows jevil.