right now i have this idea for a new item(s) that are based off the japanese anime Blue Seed. I dont know if you can get masterwork gems, im guessing they would be wonderous items or something like that, but thats what would be used. The gem would have to be charged with a soul of some outsider. There would be many ways to do that. 1) a new spell that can be cast on an outsider and if it dies within the spells duration its soul is sealed inside the gem. 2) the gem is held by a new outsider type called arigami. The arigami store their souls inside the gems and the gems are used to manifest the monsters physical shape. Ill think of some other ways later. Then the gems are placed inside the players skin. This takes a ceremony of 8 hours to properly instal the gem to the nerves and muscles and such. The gem can be placed at one of many regions of the body: The seven main chakra points (which give it a +2 on whatever the gems does) (the chakra points being the top of the head, the forehead, the throat, the heart, the spleen--im pretty sure--the solar plexis, and the area right above your groin), they can be placed on the hands and feet, and three may be placed around the colar bone or upper pectoral. What the gems may do varies as well. It would depend on which outsider's soul occupies the gem and where the gem is placed. Say you take the soul of a lesser demon and fuse it into your right hand, you may get one of these powers: ability to cast "negative energy ray" 3 times a day +caster level, ability to grow a demonic sharpened bone from the elbow that acts as a +1 evil longsword (this being used 3 times a day +caster level), or be able to cast inflict moderate wounds 3 times a day per caster level. There would also be some reprocusions to using the gems as well. The users will is constantly under the influence of the soul of the trapped outsider. Also you may not have any armor or weapons or items wherever the gem is placed, or risk the destruction of the gem and being possessed by the soul of the outsider. Say you have the demon gem in your right hand but you are wearing locked gauntlets. You foolishly try to cast one of the spells awarded by the gem without taking off the gem, you must make a reflex save of 15 +casters level or the gem is destroyed...then you must make a successful will save of 10 + outsiders level or be possessed by the outsider until the outsider finds a new host. This is still an idea, i just wanted to share it with you all.