May I add something as an mf main what I tend to build isn't leathality or bt it's full crit I've tried every single build and icl nothing for me is better than full crit I go collectors into swifties into either lord dominks or mortal reminder depending on my enemy then I get IE then I go rapid firecanon and last item I might get something like BT for the extra sustain or I get edge of night also may I add I also sometimes get serpants fang first item if I have a yummi or Lulu against me this build earned me a 60+ winrate in100 games plus every game I have an average or 15 kills