And the asset is obviously magic I wager.
I remember reading someone saying that pairing a mage avatar with this....
...gives you overpowered babies that steamroll the game. Is this true?
Any pairing with your avatar allows their children to have all the classes exclusive to their gender. So if you pair Tharja with the Avatar,
has the ability to gain a lot of good skills like Galeforce, which is extremely useful especially for a Dark Mage/Sorcerer.
Since once you change her from an Archer to a Dark Mage and slap the Nosferatu tome (This is
the game breaker tome) on her, watch as she basically obliterates all the other enemies especially on the easier difficulties. This also applies to
as well.
This is important to note because of the fact of how good the Dark Mage/Sorcerer class is and having one (besides your Avatar and
) with access to many skills is always helpful, especially when on a difficulty like Lunatic (where having a good Sorcerer is almost required to have).
Mind you this isn't exclusive to Tharja alone (All Avatar children can do this) and
herself will always have access to that class, but it is useful since a lvl5 Tharja does give her and
the skill Vengeance (Avatar can do this as well but you should have him give your children another skill) early on and I believe (not entirely sure on this) good growth rates on MAG and SKI for them.
And this is kinda unrelated but here's a video showcasing why the Sorcerer is one of (if not the best) class in the game. Featuring a Female Avatar Sorcerer (w/ Nosferatu) paired with Chrom, absolutely demolishing a map with enemies stronger than ones you face on Lunatic+.
Video does contain spoilers on an upcoming DLC chapter.
http://www.youtube.com/watch?v=xaqA4JmXmQ0
For FE veterans, how hard is Hard? Harder or easier then Hector's Hard Mode in FE7? Harder or easier then Normal in Radiant Dawn?
Easier than Hector's and Radiant Dawn Hard mode for me so far, though I wouldn't be surprised if things change on the upcoming chapters.