hello I am French and I wanted to ask you if there could be a sub category for all the levels of asura's wrath

If you're asking for ILs, I don't see why not... but the greatest motivator when asking for a new category is to have submissions for that category. Historically, moderators on this website are often asked to create categories that when made, sit vacant... I look forward to your IL submissions to motivate creating the IL board.