Board Thread:The Quarters - Q & A/@comment-74.138.107.53-20160609140010/@comment-28672580-20160609162700

Certain skills grant a buff when cast. Some are selft buffs and some are party buffs. You can also get a buff to all of yours stats if you finish all of your dailies (it gets applied on the next day).

you should read this page on Buffs