I've finally 1cc'd every difficulty with every character in PoDD!
I came up with a strategy that gave me a a winning chance with Ellen. Basically if the AI has nothing to rerflect back at me. It cant spawn bosses or lv2-3 charges. Although the AI can still use its charge guage to spawn a boss on my side or use lv2-3 charges. Also, after a set amount of time. The AI MUST get hit by something even if its a enemy on its screen.