The way I see it, the main role of any red mage is to kill off important green threats, most notably Hector, Nino, and Julia. If you're a strong enough nuke, you could consider looking at destroying red and colorless units as well (with Raourblade, Raourraven, and/or Swordbreaker), but above all the most important role they must be able to fill is to AT LEAST delete important green threats. So let's take a look and see how Henry does.  +Spd Hector has 34 attack with Raorraven+ and 25 speed.