Is your feature request related to a problem? Please describe.
Missing Discipline Priest Power Word: Barrier from list of spells that can be announced

Describe the solution you'd like
Just add it as one of the options

Additional context
i have attached two screenshot showing spell id, hopefully this helps

1st image is when its being used and the buff that people get when inside, 2nd image is the spell on my action bar unused

Added in 5.4