Quote Originally Posted by Saeleyna View Post
Is Herc (with regards to soul weapon) the best soul for Wind? For context I'm running Azazel, Gaia, Oberon, and Iblis. I have enough to buy a soul weapon and wondering if I should just buy the herc one or hold off for now.
When in doubt, go with Herc.

For Wind, some high-burst generation builds which include Titania and SSR Cybele and guaranteed triple-attackers can also run chain-gun burst builds and use Shingen. The same-ish builds are also good with Morgan due to their high/guaranteed combo rate. Your team doesn't seem like it can support either, so just stick with Herc if you ask me.
Quote Originally Posted by Saeleyna View Post
Also, do stock for regalia reset every month, or is the increased conversion rate static (5 fragments = 1 regalia for 20, then 10 fragments).
The first of every month will reset that count back to 5 cost per 20, yes. I wouldn't recommend trading for the 15 cost ones, and for most players even then 10 cost ones are quite in-efficient (though I personally buy those as well).
Quote Originally Posted by Saeleyna View Post
Also, anyone know when/what the holy soul weapons are and when they're coming out?
The encyclopedia in Sanahtlig's toolbox gives you a quick peek on all the upcoming new stuff. Just keep in mind there's no guarantee that Nutaku will stick to this schedule.