ColonelHardisson
What? Me Worry?
The Shaman said:The funny thing is, as Piratecat astutely alludes to, is that a dire-fiendish-half-dragon-githyanki isn't really "fantastic" in and of itself: it's just a collection of mechanics grafted to one another. If (1) there's an interesting, involving backstory as to how that monster comes to exist, what it's motivations are, and what its place is in the setting, and (2) the game master doesn't overuse templeted monsters just for the sake of coming up with "something new" in every encounter, then the ability to use templates and character levels to create unique monsters is one of the best features of 3e D&D, IMO.
In addition, those templates can be seen as simply a package of abilities that can be used to customize critters to taste. They don't necessarily even have to have a rationalization behind them, anymore than a beholder has to be rationalized to most players as to how it can fly and shoot spells from its eyes. A half-fiend troll just happens to be a tougher, more destructive troll; it doesn't have to have been the product of some unholy union.