Chiming in cause MFFS was something I mentioned before.
It would help with securing/building larger bases for late game.
Also would allow for securing a safe place in more dangerous biomes (i.e. the nether since we have lycanites) since it provides a means to prevent mob spawning in an area.
Now if I recall, the balance is the large amount of power and diamonds (and I think even emeralds?) needed to make and maintain the system.
Also just to confirm, Mystcraft for 1.7 is unstable and therefore will not be included?




