Originally Posted by
Tenhou
1. I'd recommend saving 10-20SC for events so that you always have enough of them in case you want the event units. As for what events are useful, Lafate always puts up a guide and comments on it. Aside from that you can also ask in said thread when it pops up for further suggestions.
2. As for benchmarks, i'd say you should focus on getting some units to 30ish first and then go on to 50 and CC them. The units you mentioned in your priority are nice but i'd suggest first CCing Katie and/or Bashira. Bashira is something you level if you have a decent amount of silver archers since she needs a whole 3 of them. Otherwise it might be a better idea to go for Soma/Daniela. Iris is after that and if you want to aim for early phalanx 2 challenge missions you will need Cloris CC'd. Leanne is not that important to CC first but she becomes more important later on.
3. Typically at 40+ you will want to use only bronze units and then stop at 50+ for CC'd gold/plat units until you can get your hands on platinum armours and more fairies. Do note that early iron/bronze units from maps might as well just be sold until you reach better ones.
4. If you want to do this, you better do it at 40+, but usually you might want to save those fairies for other things.
5. Decently important. Many units do not even have iron/bronze fodders of their class. It does give more exp to match classes but it is not a death threatening situation to not do so as long as the fodder is high level.
6. Only worth it if you are going to fodder gold+ units to CR/SU (and even then it's only to level 10ish) but you won't want to do that for a long time. Leveling iron/bronze fodders is pointless.
7. When starting out you want to save all gold possible. The higher level you get the more it costs to combine. A safe buffer later on would be 500k, but it never hurts to have more.
8. Combining and 2k gold summons. Once you reach awakening stages (much later do not even worry about it for now) you will need tons of gold though.
9. Katie, Bashira and Iris are good contenders for your first affection items. In that order too as Katie's defense is really darn useful a lot of the time.
10. I'll leave this to others. If it exists, it's in the stickies :P