Because I didn't bring any dragons into the final chapter. Nasir got his Nihil ripped off and was benched. And I didn't want to waste BEXP or speedwings to get Ena or Kurth up to the point where they wouldn't get slaughtered by Ashera (happened that way on NM, if I remember correctly, so didn't want to take the chance on HM). And isn't using dragon bonuses a bit cheap? Even when I did bring the dragons (early endgame), they weren't generally close enough to the action to affect the frontline fighters. That's my own fault... I guess dragon bonuses would've helped, but it still only takes 3-4 turns to beat the Auroras and Ashera on HM.
And Brave weapons? On HM? That gives like a 50% hit chance vs. Auroras/Ashera. All I know is that Nolan had 36 str and 35 speed, and did 17 damage to Auroras with Urvan. 17. With an SS weapon. The only upside is that he could actually hit the Auroras, unlike a certain blue-haired protagonist...Ugh.... Nolan was used to dispose of spirits... Actually, VK, DB, Rexcaliber, and Alondite destroyed most of the Auroras. And Ashera was easier to kill than them, so it didn't matter after that.
It was my first PT after a long hiatus, so I might not have covered all my bases for HM endgame, but I got through it fine. I was just underwhelmed by "the strongest beorc unit."
On a completely unrelated note, I was too busy thanking the RNG goddess for letting Miccy cap speed and most of her other stats w/o statboosters or BEXP for HM. Helped out a ton. Let her survive w/o Sothe's support in Endgame, which was good b/c he was too busy almost getting killed. :)