just type /bind key team "Fortitude applied to $target"
replace key with what ever letter or number you wish to use and then every time you press that key it will show that message in team chat but will replace $target with your targets name.
You can also make it so that the bind also activates the power but i can't remember how to do it 
Edit: just found the bind to acivate the power its
/bind KEY "team MESSAGE$$powexec_name POWERNAME"
tyvm =)
Is there anyone out there that is useful at makin binds, as i could do with a few to save me a lot of time but i havent got a clue how to make them. Such as "Fortitude applied to ..." If anyone got any help i would really appreciate it. Any suggestions welcome please.