I like ALondite on Eddie to help his god awful defense. It gives Eddie everything a growing Trublade needs as oppose to Vague Katti which only gives 2 Defense and no distance.
But that doesn't require the Alondite to be blessed, does it? You can still have Edward make use of the Alondite while blessing a more powerful weapon so he has multiple options.
Also, the Vague Katti gives 3 defence, not 2.
Though not like it matters when most enemies with Mantle attack resistance... Desingea attacks defense, yes, but Edward won't be doing crap to him with the Alondite...