This is a guide to the optional Magic system in GUTS+.
Magic in GUTS+ depends entirely on the concept of Essence. Every living creature is able to utilize their Essence, but it requires a great amount of focus and control to use it. So long as you have an ability that can harness their Essence, you can manipulate it to do a variety of interesting things.
Note: This book complete and usable, but it may be subject to changes.