So right now I'm about to kill Malthael, and with some effort, I can definitely kill him on Master Level (I killed him halfway fine and I let myself die because I had to go somewhere). I haven't tried torment yet, but I'm guessing that T1 will be very hard for me to solo (I joined a friend's bounty mission to kill Malthael at T2 so I was able to gauge how I would fare). I'm wondering if I should ask around for help to kill Malthael on T1 for a slim, but possible chance at a Torment-only legendary, but I don't know if it's worth the hassle if drop rates aren't different for the first boss kill. Does anyone know how the drop rates work?