I just got back into this about a week ago, and I've worked my way up to 150 mithril. On the relic draw screen, I see the "Wutai Headband & Assault Gun", "4-point Shuriken & Platinum Fist", "Dr. Mog's Beginner's Choice", and "1 Free Relic Draw per Day" icons/banners/whatever they're called.
I need some upgrades pretty badly to help me progress, so which of these icons/banners do I need to use for my first relic draw? Just at a glance, it seems like I should go with the Dr. Mog Beginner's one because it says something about a one-time only relic draw + bonus relic thing that will let me choose a relic after using the the x10 draw option. If I do that, is there a certain relic or relics that are known to be better choices than other ones? Sorry to ask a question that probably has an obvious answer to regular players, but I'm still a bit overwhelmed by everything even though I've been back at it for a week.
I'd say the top choices for the beginner banner garunteed pull are in order for a complete beginner
Tyrfing: FFIII synergy is rare, advance is a very power sb that can turn Luneth into an insane glass cannon with double cut, tempo flurry, or barrage (whichever you have access to)
Healing staff: Best mind weapon in the game, will make any healer great even if its sb isn't anything special (you should just s/l if someone dies). Could let you keep using Cura/aga where most others would have to bump up to the next level, and will make dia/ara/aga be 9999 a lot of the time depending upon difficulty of content.
Valkyrie or Storm Staff: best offensive mage weapons, the storm staff will be more useful sooner with the beatrix event coming up at the same time you might pull a better magic weapon from one of those banners. Valkyrie is a throwing magic weapon good for ninjas or mages who can use it and has a pretty good sb for rinoa.
Ras Algethi: great ranged weapon which can let you do good damage from the back row and be extra safe. Sb isn't great but at least its aoe and water so not much resist it.
Stormlance: limited to tyro, can be as powerful as an ssb with the right set up, not really worth for beginners
Everything else sucks and is a complete waste of time
You have time to wait and see what you get from celebrations and other banners, but if you really need one of the above now to push you over the hump to do a lot of content go for it.