Ok let's use your lvl 1 PvP example. Let's say it's a party of 6. Fighter, Paladin, rogue, cleric, and sorcerer. The wizard casts sleep on the party. Let's say they are all optimal builds. So (Hp), F=13, P=12, R=9, C=9, S=6. Wizard rolls 22hp for sleep. He will take out the sorcerer and cleric...