Desynthesis Endgame Guide

[Nyalia]

Just to confirm, you start at least having a chance to desynth something at ~25 rlvl below it, right? Because if that is the case then if I can just make it to 95, I'm willing to mass desynth stacks icepick at 5% and such at rlvl 120 to raise it up. Once I hit HW fish I have a major stockpile to raise me up quickly.

So, without any bonuses, you hit 1.5% at 29 skill points below the rlvl of the item. Each point gives 1.5% until 30% at 10 skill below the rlvl, then each point gives 2% until 70% at 10 skill above the rlvl. From there, it's back to 1.5% per point until 100% at 30 points above the rlvl.

Since you can't meld materia to fish (wouldn't that be awesome though? I want a CUL synthable/desynthable trout as a PLD weapon with materia slots!), your only option for bonuses is Careful Desynthesis. If you have Careful Desynthesis (and you hate yourself), you can start 30 points (or more) below the rlvl, but your chances will be really, really bad. You can even start lower than 30 points, with each point below that point being worth 2.5% instead of 1.5%, according to an earlier report.

Here's a chart for a 120 item. C# = Careful Desynthesis +#, with Bacon Broth giving 1 (NQ) or 2 (HQ), and Tinker's Calm giving 3 (NQ) or 4 (HQ), for a total from 1 to 6.

• dSkill 85 - Base: 0% (-12.5%); C1: 0%; C2: 0%; C3: 0%; C4: 0%; C5: 0%; C6: 2.5%
• dSkill 86 - Base: 0% (-10%); C1: 0%; C2: 0%; C3: 0%; C4: 0%; C5: 2.5%; C6: 5%
• dSkill 87 - Base: 0% (-7.5%); C1: 0%; C2: 0%; C3: 0%; C4: 2.5%; C5: 5%; C6: 7.5%
• dSkill 88 - Base: 0% (-5%); C1: 0%; C2: 0%; C3: 2.5%; C4: 5%; C5: 7.5%; C6: 10%
• dSkill 89 - Base: 0% (-2.5%); C1: 0%; C2: 2.5%; C3: 5%; C4: 7.5%; C5: 10%; C6: 12.5%
• dSkill 90 - Base: 0%; C1: 2.5%; C2: 5%; C3: 7.5%; C4: 10%; C5: 12.5%; C6: 15%
• dSkill 91 - Base: 1.5%; C1: 4%; C2: 6.5%; C3: 9%; C4: 11.5%; C5: 14%; C6: 16.5%
• dSkill 92 - Base: 3%; C1: 5.5%; C2: 8%; C3: 10.5%; C4: 13%; C5: 15.5%; C6: 18%
• dSkill 93 - Base: 4.5%; C1: 7%; C2: 9.5%; C3: 12%; C4: 14.5%; C5: 17%; C6: 19.5%
• dSkill 94 - Base: 6%; C1: 8.5%; C2: 11%; C3: 13.5%; C4: 16%; C5: 18.5%; C6: 21%
• dSkill 95 - Base: 7.5%; C1: 10%; C2: 12.5%; C3: 15%; C4: 17.5%; C5: 20%; C6: 22.5%
• dSkill 96 - Base: 9%; C1: 11.5%; C2: 14%; C3: 16.5%; C4: 19%; C5: 21.5%; C6: 24%
• dSkill 97 - Base: 10.5%; C1: 13%; C2: 15.5%; C3: 18%; C4: 20.5%; C5: 23%; C6: 25.5%
• dSkill 98 - Base: 12%; C1: 14.5%; C2: 17%; C3: 19.5%; C4: 22%; C5: 24.5%; C6: 27%
• dSkill 99 - Base: 13.5%; C1: 16%; C2: 18.5%; C3: 21%; C4: 23.5%; C5: 26%; C6: 28.5%
• dSkill 100 - Base: 15%; C1: 17.5%; C2: 20%; C3: 22.5%; C4: 25%; C5: 27.5%; C6: 30%
• dSkill 105 - Base: 30%; C1: 32.5%; C2: 35%; C3: 37.5%; C4: 40%; C5: 42.5%; C6: 45%
• dSkill 110 - Base: 40%; C1: 42.5%; C2: 45%; C3: 47.5%; C4: 50%; C5: 52.5%; C6: 55%
• dSkill 120 - Base: 50%; C1: 52.5%; C2: 55%; C3: 57.5%; C4: 60%; C5: 62.5%; C6: 65%

At what point does that become viable? That's up to you. Starting at skill 85 might even be reasonable, if icepicks are cheap enough. Which is cheaper, the ~6-7 r80 fish it takes to get from 85 to 86, or the ~50 r120 fish plus HQ Tinker's Calm plus HQ Bacon Broth that it takes to get from 85 to 86 (you need ~1.25 successes to level with a 2.5% chance)? Are you willing to sit through ~39 failed desynths for every success? At dSkill 88, it's definitely viable though, if HQ Tinker's and HQ Bacon is available to you. 10% isn't THAT bad!

NOTE: If you (or anyone else) does try this while that far below 0, please let me know if my numbers are off! I only had one report so far, so for all I know, the negative success rate varies weirdly, like -2%, -5%, -10%, -20% instead of -2.5%, -5%, -7.5%-, -10%.


By the way, to struggling FSH desynthers around ~70 skill, check the MB for Megalodons as well as the Takitaro (recommended by the person before me). They're also brought back from the old level 50 FSH ventures, and some people (like me) still spam those looking for Fat Cat minions. Failures bring back either 1x HQ Mahi-Mahi (r55), 1x HQ Giant Catfish (r55), 1x NQ Takitaro (r70), or 1x NQ Megalodon (r70).

I started at 88.92, but even before that I've already desynthed most of my iLv 100 soldiery accessories using the Bacon and Tinkers. Personally I liked that much better than grinding through glasses.

Thank you so much for the data! So, at 23 below, you were getting ~0.8. At 20 below, you were getting ~0.6. At 15 below, you were getting ~0.7. At 10 below, you were getting ~0.6. At 5 below, you were getting ~0.4. At equal level, you were getting ~0.4. At 5 above, you were getting ~0.3. That's in line with what I thought, with the anomaly at 20 below being feasible as an outlier due to the extreme variance of these exp values. Thanks!


Is it possible to acquire the weathered "Soldiery" accessories now that soldiery is gone? If not, I can't really suggest it in my guide anymore, since that's only available to a limited number of people going forward. Hence the glasses - they're still there to get you through the gap, if sub-ideal. PvP accessories are there too, I suppose. I could add them, but they're getting pricey in Wolf Marks at the 100/110 level, so I'm not sure how much spamming them is viable.