Thoughts on the new PvP Grand Battle

My feelings are kind of mixed. I think the thing I hate most though is the awkward rank system. I know on my lower leveled Demon Slayer, I've cycled through medium at least three or four times (exact same room too) before just randomly skipping to Very High, where I killed 4 people without dying and then moved back to Medium.

Also I feel like the MP things should restore at least some DF since the DS's main chain is so awkward in PvP.