I remember in a post awhile back someone said something about wishing paladins could change the warcry for the goliath. Could this be considered for a custom warcry as well?
Custom warcries?
Custom Warcries were added in the last slew of changes. You have to apply for them. Type HELP CUSTOM WARCRY.
But would it be possible since paladins do not have the warcry skill...it is a prayer...?
Paladins don't even yell anything when they call the Goliath.
Some of the more 'deviant' Paladins do...
Dey
No paladin skills have them yelling something.
What're you looking for? Something like: "Yoohoo! Here Pony!"?
"Hey there Pokey!"
"Hi-yo Goliath! Away!"
I could have sworn they yelled something when they cast it...or maybe I am hallucinating 
"Up, up, and away!"
Just yell yourself when you cast it now, could be fun. 
There's nothing stopping you making an alias so when you type 'com goliath' you're alias does
com goliath;
yell
There's nothing stopping you making an alias so when you type 'com goliath' you're alias does
com goliath;
yell
You lost concentration.
You yell, 'By the virtue of Light, I call upon my faithful steed!'.
Trigger it, so that if the Goliath is successfully called, you'll immediately shout afterwards. That way, no 'lost concentration' would be a problem.
I don't like having to be 50 to have a custom warcry, I want one at lvl 20!
This way it frees up the Imms time from people rolling a lvl 5 char, getting their "warcry" then deleting the next day.
Committed characters only please. 
I have commitment issues...
Dude, you don't have issues, you have a friggin' subscription!