/bind W "powexec_name POWER NAME$$say My minions of evil, come to me!"
Replace POWER NAME with whatever the power is called.
yup, i dont use inds, not lazy enough to type them in, but i use henchman so mildly lazy 
once again thank you. uve helped alot
Note that with that bind you'd then need to click a location to summon at.
If you had a combination bind including a mouse click, it'll simultaneously activate and summon. For example...
/bind lctrl+lbutton "powexec_name Lich$$say I summon you, and bind you to my will!"
... would say the text and summon the Lich (Necromancy) when you hold down the left control key and click on a location.
whats the bind where i can, press say "W" to summon my first tier pet but at the same time saying something like "my minions of evil come to me"?? i looked through the some guides but got completely lost
any help? plz