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Originally posted by SSJChrono so what u just do it, u dont have to "join" the guild to lvl up the skills? |
That is correct.
From my understanding of it, joining the appropriate guild gives you access to the "teachers" that will temporarily buff your skills so you'll be more likely to suceed. Note that teachers don't garauntee success, merely increase the chance of success. Also, you will need to be a member of the guild to test for advancement in the guild, although I havn't seen any comparisons on success/fail ratio based on whether you're of a certain rank with the guild or not. (I'll work on that shortly.

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But if you want to just start synthesizing, all you need is the right crystal and the ingrediants and poof, you're off. Be warned though that you would be starting from a skill of 0, and would be lucky to gain 0.1 skills points for around every 20 attempts.
Crystals can be expensive from my understanding, so unless you have a stash of them lying around, it would probably be in your best interest, both time-wise and money-wise, to use the trainers at the guild.