How could you be such an incessant prick? Next to me, Amaury's probably had the hardest time with this battle, and doesn't have the same skill as you
I changed my way of leveling with this walkthrough. CP > CP > CP > CP > HP > CP > CP > CP > CP > HP and so on. Now that it's getting harder, it's CP CP > HP > CP CP> HP and so on. This is, of course, excluding pauses when sleights become available.
Oh, I completely ignored the sleights after a while. Sometimes I went far enough to get a few interesting ones, but usually the farthest I got in sleights was the giant ball of flaming death. I think the highest I ever had my HP was maybe between 150 and 190, but that's it, since the rest went into CP and I could put as many cards as I needed