to kill someone, you have to get the lightning powerup in the jungle. holding Z near people will elecrocute them and they start fading. when they disappear, they drop a soul which gives endurance
"ooh, a chest. lets see. it has a pungent potion! exactly what i needed, but my bag is full. drinking straight from the chest would be ridiculous. ill just throw something away and drink it"
im sure they nerfed the game a bit. my knight lvled up and got 6 health and 2 leadership while my battlemage (now archmage) got 2 health and 2 leadership