Never use Cornelius Constantine. He is awful. There is absolutely nothing good about him. Especially with girdle. CC/Girdle is one of the worst combinations in the entire game. If you even open with Cornelius, I suggest you move him out and get other cards.
Also, consider using Popo. Popo can deal 75 damage in ONE HIT. Like that’s enough to one-shot most characters. Popo is a god, always use him. Start with him. In fact, people used to hack decks so that they could put 3 Popos in there. I’m serious, that’s how OP he is.
Don’t listen to any haters down there who tell you otherwise, they’re just trying to make you stop using the best strategy there is. And you need the best strategy, considering how few people are left.