The most rarest of the cores and white in appearance, can be used to upgrade Mythril grade equipment cabal gold.
* Force Core:
Unlike the other cores you can only use force cores on items which are slotted and you have to go to the 'Core Alchemist' to use them.
Slotted Shadowtitanium Daikatana
When speaking to the Alchemist, click on 'Upgrade' to upgrade your weapon and then a new menu will appear. The Item space is to put the weapon or armor inside you want upgrading, the core space is to put your force core inside - i also put inside a low core as it will increase its chance of being successful (note: you can put 2-3 force cores inside and can get a chance at getting a level 2 upgrade but its completely random what you get), the Catalyst space is where u have to put another slotted weapon / armor inside and this determines your special upgrade.
The Catalyst must be Slotted +0 (have no extra stats)
Below is a list of the level 1 enchantments and how to get them.
* Attack + 4 :
Item = Any Sword | Catalyst = Blade or Katana
Item = Crystal or Orb | Catalyst = Blade or Katana
Item = Gloves | Catalyst = Blade or Katana
* Attack Rate + 50 :
Item = Any Sword | Catalyst = Gloves
Item = Crystal or Orb | Catalyst = Gloves
Item = Gloves | Catalyst = Gloves
* Critical Damage Increase :
Item = Any Sword | Catalyst = Great Sword or Daikatana
Item = Helm | Catalyst = Great Sword or Daikatana
Item = Crystal or Orb | Catalyst = Great Sword or Daikatana
* Defence + 2 :
Item = Boots | Catalyst = Suit
Item = Helm | Catalyst = Suit