10 might not be enough considering most people read on mobile. Remember it's like any other marketing of your comic - even if you don't have a whole lot of plot, at least have plenty on the main characters, so people don't scroll down and get disappointed it's small.
But not every single one needs a description - I've seen some get away with just the trope name and nothing else in between a few described instances because it's an obvious characteristic of the work(like say, a comic with adventuring guild in the summary doesn't need much on World of Adventure unless you want to add a subversion).
Look on the good side though - at least their anti adblocker isn't broken like it was a few months ago and shutting down the page even if you turned it off... I hope.