BoneCraft weapons and tools cannot use vanilla enchantments. As a result of this, several unique enchantments are available to them. Some of these enchantments can be obtained with an enchantment table, while others are only available as Craftable Enchantments.
Sharpness: Increases weapon damage against everything by the enchantment level * 3. Can only be obtained via enchantment table.
UnBreaking: Increases the chance that the tool will not be damaged when used, up to a 33% chance. Can only be obtained via enchantment table.
No enchantments appear to work on the Ender Dragon. Actually Sharpness Affects the Enderdragon, but with less power than normal.