And it assumes you allow Grandia 1 spells...
...which as it turns out, I do! At the very least, Rapp would be able to use Speedy and Heal...
It would be a long-as-hell fight, but he MIGHT be able to do this if he saves all of his SP for a triple after he boosts his Speed (probably would need all 3 castings to triple Alicia, maybe only two if you see Menu spells as particularly sluggish).
But it is definitely true that Alicia's incredibly crappy damage is not a threat to Rapp at any point... even -with- her Soul Crush, assuming you allow that (I do, but I'm also using the 3-turn average).
Ugh... math later if anyone cares at this point.
-Djinn