Thanks for the advice guys. Okay, a couple more questions:
First of all, what are some good ways to get recuperation or regeneration? I seem to be particularly unlucky when it comes to my units picking up afflictions.
Also, if I empower the Fallen Angel with Astral 1 (which is apparently what's required to cast Body Ethereal according to the Wiki) I could theoretically have the Fallen Angel cast Body Ethereal and then Blood Vengeance which seems like a pretty good combination (normally he won't get hit, on the off chance that someone manages to hit him he is much less likely to take damage). Or maybe Fire Shield is a better option because a unit just has to attack him to take damage, rather than actually wounding him also?
I suppose then I should have him attack and cast Soul Vortex (sounds like a pretty awesome spell).
As for items, I was reading a LA Marignon guide earlier today that mentioned the Fallen Angel have an "in-built brand weapon" (fire brand, I suppose). Am I missing something? This doesn't seem to be the case currently, was it removed in a patch or something?
Also, how about the Horror Helmet to enhance his feat aura?
If I'm equipping him with a Fire Brand (assuming his Dark Fire Sword does not provide a brand effect), I could also give him an Eye Shield to further decrease the effectiveness of (nearly) anything that strikes him.
As for armour, I was thinking two pieces. There's one suit of armour (Astral Plate, or something to that effect, anyway it's a white breast plate) that sounds like it causes awe. The only problem being that it also mentioned something about whisking the wearer away from battle if he's wounded. Does anyone know what I'm talking about? What's the actual effect of this item?
And then there's the Dragon Scale suits. I could always give him the Green Dragon Scale armour to give him resistance to poison. Red seems to be less useful because he's already immune to fire damage.
As for trinkets, what works? Do the Brand Weapons factor your unit's strength and accuracy into their damage?
Are there any other items that confer quickness? Unfortunately Water casting doesn't seem to be an option at the moment.
I'm not necessarily going for an optimal build for the record, just trying to choose the best of what is realistically available to me at the moment.
Anyway, thanks for the help guys. This is my first game besides the tutorial, so I'm not exactly the most competent player out there.