Group styles are seriously underrated here, from my experience. I've found it's actually much quicker and easier to fight a crowd with group style than an individual with an equally developed style. If I want to cut a battle short, I'll herd as many together as possible before cutting loose. There are a few exceptions:Wyverns: Not the royals, which fall as easily as anything else, but the smaller size are good at blocking and getting critical effects in past the circle. At maxed Group skill and with a good silver sword, even those are a breeze.Bloedzugers: It's doable, and very effective to catch a group in the deathblast, but you have to be quick and paying attention. If you're not watching the one who's about to die, you have to be ready to flip away as soon as you hear the death hiss, even interrupt your current attack to get out of the way. Quen is useful for this, and highly recommended if there'll be a unpredictable chain reaction.Knights: Anyone with a shield has a chance to block a Group attack, and even if you can get the first attack in, you're highly unlikely to chain a second onto it. Samum was useful for getting around this; so far the only use I've found for bombs.