if you die your lives go down. if your lives reaches 0 you go to the void (new dimension) in the void the only way to escape is to either grind for a soul (from enimies) or beat the void guardian. keep in mind if you die in the void you loose are you items and xp. (note) this mod is ment to be played with keep inventory on and without it on the mod can be very easy.
New items: turtle sheild, stone hammer.
New Teirs: Enderite, void.
New tool: Picksaw.
New Dimensions: the void, layer 2, aether.
This mod can spice up the game a little and ad something to do after you beat the ender dragon.