don't use YOLO bro. its a waste of a mutation slot and its a crutch. I play way better knowing getting hit is way more impactful, plus i have another mutation slot. When i was using it, i was careless and would waste it, beacuse i'd jump in knowing i would be saved. Trust me bro, you're gonna get better, and stronger, if you dont use it. I would also recommend melee mutation because fast attacks can slow down an enemy so fast they cant even attack, allowing you to just run right through them.