Unsouled

Not a guide, but a simple PSA: This achievement requires you to kill all enemies AND bosses with a counterattack. That being said, the inclusion of bosses in this doesn’t really make it any harder (and if you’re going for the completion you’ll get most of them while unlocking other achievements anyway; exceptions are Gnar, Ammu (either variant), and Lyuh); select the difficulty to easy, turn on Rookie Mode (the two together make you basically invulnerable) and use the Soul of Bagoe if you really need a boost to the relatively generous counter window. You’ll be able to check what enemies and bosses you’re missing for this via the statistics menu after you’ve finished the game; if the counter bar on all of them has a number higher than 0, you’re good.