SkillAPI Plugin 1.6.2
SkillAPI Bukkit Plugin 1.6.2
If you’ve seen my EnchantmentAPI, this plugin is similar in the fact that it allows you to create custom effects. The major difference though is that this has more features and instead of going through enchantments, it does it in a class system with skill trees! A skill pack will be coming out in the near future for those of you who do not want to code your own skills.
Download here : http://www.5minecraft.net/