General

You could also use shield wards, you can get 2 each month from the maple reward shop.

I've heard people saying that it costs around 18-22b (during the 60m per CSS period).
I'd assume about 3b per success with a standard deviation of like +-1.2b. This is off a few accounts from friends though. I haven't tried myself.

I honestly don't think that it affects traces..diligence i mean. Either I've been owned by the rng or idk.

@juarmo: You say diligence works, I have heard others say it doesn't work. I know how RNG work, but I also know that with the guild skill and lvl 60 diligence I don't see a noticeable difference in the success rate of the 70% option. Either way, from hearing people talk on here and ingame it takes about 10bil to perfect a weapon, not including the cost of the weapon itself. Obviously you can do it with a lot less if you are lucky, or a lot more if you are unlucky. But 10b seems to be an average

[quote=Lecarde]@juarmo: Diligence doesn't work for spell traces I thought[/quote]
not sure, but was talking to the person who said, "are you saying I passed 23/24 without the help of the extra 10%?" telling him that even if it DOESNT matter, what he was saying was entirely possible.

Whether your working with a 70% chance, or an 80% chance, the cruddy RNG can give you that kind of result if you catch it at the right time on the right map.
And the statistical odds of passing that many in a row are near-zero in either case.
So what the lumi above me said is irrelevant in deducing whether or not his dilli or guild buffs worked or not.

But I'm pretty sure they DO affect traces, since AFAIK, the only requirement of the effect applying is that 1. it gives standard stat boosts, and 2. it will lose a slot upon failure.

Essentially, I'm not 100% certain, but I'm pretty sure that anything that a Safety Scroll can be used on can also be affected by a lucky day scroll, considering that it requires a slot to use. (anything that takes up a slot is, in theory, a "standard scroll", like the Vicious' hammer, or the CSS [in either case, it gives you a slot, then takes it away on failure {more likely it gives 2 if you succeed, but takes ONE regardless, since using up the slot regardless is how "standard" scrolls work}], which I've heard from a trustworthy friend, are in fact affected by Lucky Day's, etc. so it stands to reason that Traces are subject to the same effects since they are closer to scrolls than hammers are.)

@flygon123445
You are wrong. Dilligence does not affect spell traces because when you lucky day scroll any item, then spell trace it, the lucky day remains. This means that spell traces aren't scrolls, so the dilligence does not affect the passing percentage.

@juarmo: Diligence doesn't work for spell traces I thought

Took me around 5b for mine, but that's when CSS were like 30m.

[quote=Lecarde]You can assume that at most 2 will work for the 10 slots, so 8 slots to CSS, and an average of 10 CSS per slot. So you are looking at 400mil * 8 is 3.2bil to get 2 slots success and have 8 slots open to spell trace. Continue the math yourself, but it will be above 10bil if you are unlucky[/quote]

Check your math. You forgot to factor in a few variables, like the lv 100 dili and the max guild buff. that's an extra 14% success chance, so the actual odds are 29%, and that means, that your expectations should be at most, 3 successes. And if you don't get at least 3, you should inno and retry. You should ideally innocence it if it isn't ABOVE the statistical average, so go for 3-4

P.S. I'm pretty sure using safeties is more cost effective when success chance is below 20%. At least, if you base it off of event coin shop farming

@above, the TRASH RNG mang, I'd gotten that average w/ nothing but +2% diligence (since I was scrolling on a new-ish char), so, that's a definite possibility.
And odds don't work like that. Even in the true randomness of IRL, it would be highly improbable, yes, but by no means impossible.

In fact, its not much likelier w/ an 80% chance. Odds are Still well under the 10% mark, probably under the 1% mark. (I'm not gonna bother with the actual calculations, mostly because I gtg soon)

[quote=SimonHe890]Diligence doesn't affect spell traces. Took me 20b for 10 slots (yes i'm serious) using 15% spell traces.[/quote]

yes it does. are you saying i passed 23/24 70% spell traces all on luck? im fairly sure my lv 65 diligence and 4 guild skill stacks.

diligence doesnt affect CSS either

Diligence doesn't affect spell traces. Took me 20b for 10 slots (yes i'm serious) using 15% spell traces.

Just posting my experience, but I spent approximately 10-11B perfecting a 10slot weapon with 15% spell traces. However, I believe i only had around a 3% increase from diligence. Of course if you're really unlucky you could spend a lot more. Good luck with your scrolling.

11 B for +8 x 15% Spell Trace for my Fafnir Claire El. But CSS were at 60m for 6 of the slots LOL. Right now, cost you less than 9-10 B. I only have level 21 dili. So you should fare better than me.

You can assume that at most 2 will work for the 10 slots, so 8 slots to CSS, and an average of 10 CSS per slot. So you are looking at 400mil * 8 is 3.2bil to get 2 slots success and have 8 slots open to spell trace. Continue the math yourself, but it will be above 10bil if you are unlucky