I think the indo roar should have some speical use that when the indo roar to raptors,the raptors in roaring range will be controled by the indo for some period of time no matter they are tamed or wild,and the indo can command them to fight (raptors following if no command) ,in this situation the riders of raptors will be dismounted compulsively.that roraing function is like that in the movie.