This is a mod I will be working on in which a new bar will be added called hope. The lower your health, hunger and light level, the lower your hope. If you have low (below half) hope, a mob will spawn called "death" they will be more frequent and powerful, until your hope is completely gone. You will get blindness, wither, and nausea. Death will become slim in number until there is only one, with 120 hearts and takes 1/4 of your max health each hit (without armor). Post any other suggestions.
Death follows you.