Big Metal Unit.
I did Abazigal before Sendai just to get this earlier.
Usually I give it to Keldorn, swinging Carsomyr, and that would move him from AC -6 to -14. When he's not using Carsomyr, he's using Firetooth, which can fire the projectiles that come with the suit.
If I give it to Mazzy, with Crom Faeyr, that moves her AC from -11 to -19. I'll be upgrading the Rune hammer soon, and without a shield, it's the same -6 to -14 AC jump as Keldorn.
It can move Neera from -2 to -15 AC, but disables her spells, so probably not worth it.
It moves my second created character, a cleric/thief, from AC -12 to -23, but would disable her thief abilities.
If I move it to my archer charname, it moves AC from -10 to -19, and his bow seems to be able to fire the projectiles.
Nalia doesn't have the strength to use it.
Suggestions?