If you want to pulverize your enemies with endless bones, this Mortaccio build is for you. Keep up to date with the most important stories and the best deals, as picked by the PC Gamer team. Unlock instant access to exclusive member features. Get full access to premium articles, exclusive features and a growing list of member rewards. And I don't mean that in the tee-hee, I'm exaggerating just a little bit way. I know that Vampire Crawlers is all about making crazy builds with stacking stat buffs and strong synergies that can clear encounters in seconds, just like Vampire Survivors. But I think I've cracked the code with what may be the best build in the entire game. Not only is this build ridiculously effective, but it also pretty much puts the game on autopilot. It's all thanks to one funny little skeleton guy. Mortaccio is a skeletal Crawler that you can unlock by slaying a total of 444 skeletons. He starts with a set of Bone cards and a single armor card, and he boosts your Amount stat every time a blue card is played. There's a really simple game plan to dominate with Mortaccio. All you need to do is overwhelm your opponents with a barrage of Bones by padding your Amount stat whenever you can. That means playing a lot of armor cards, and equipping the Your Shield My Liege Arcana (which makes armor persist between turns) will make Mortaccio unkillable.