Honestly I don't think so, with helios z i still use that as my main armor (and I saw your thread about "best GS") i use GS too. So, with the attack up L, you can gem that into it with a good charm..I have attack up L, plus the negated blunt edge..sooo.. Miralis is okay, but personally for looks, and for what you have it isn't needed unless you waaaaaaant to get it.
Random side note, go farm something like lagiacrus (parts that you don't need) kill a few, sell everything, you'll have the 300k back in an hour or two ^.^ --- Friend code: 4684-2994-7877 (random code, not sure what it's for 4124-4604-9480)
Lagi was just an example, but either way, that works too. Altho chances are i bet if he re-farmed miralis he'd probably want the sword, or something else too ^.^ Temptation is hard to resist, but yes, goldbeard gives some goooood moolah too.
Also the reason i said lagi was because it was easy, 30k x 4 (160000) in 30 mins, beats 100000 in 30 mins, right? Just saying. --- Friend code: 4684-2994-7877 (random code, not sure what it's for 4124-4604-9480)
Miralis' weapons are good, his Armour is total crap.
I dunno why they decided it was a good idea to make the Armour of the final boss in the last two games absolute trash, but, they did. Funny because Crimson Fatalis / White Fatalis G Rank Armour was actually REALLY good. --- PSN and NNID: CrimsonSamuraiX