COF Lenses are Sub-par or Broken(not working) ***FEEDBACK***

Feedback and Suggestions
1

https://imgur.com/a/J26m08K

So i just want to make a note that at least some of the lenses are either not working or the odds are so skewed (in a bad way) that the added bonus is almost non existent.

I’ve linked a few screen shots of prophecies that rolled out with a 1hd sword lens. Being COF level 12 and 40% increased 1hd sword chance per level to show up id expect to be hard pressed not to see 1hd swords every reroll. Sadly a disproportionately amount of times in a bad way, no 1hd exalt/unique prophecy choice would be available. Let alone a 1hd sword prophecy with a target condition i want.

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2

Yeah, I opened a bug report on this quite some time back and no one ever commented on it (if I remember correctly) and the devs never acknowledged it. I don’t expect the devs to acknowledge everything, but you’d think that those things might improve eventually. I don’t know if they just felt it wasn’t as broken as I was seeing it and no one else reported it so it was just “ignored” for the most part.

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3

I’d say they are sub-par, not actually broken. It all has to do with how math works. You get 40% increased chance, not +40% chance or anything like that.

So if we assume that all item types have an equal chance to spawn (which I believe is a fair assumption), that means that the chance for 1h swords to spawn is natively 10% (I’m assuming 10 different reward item types that can be rolled, haven’t really counted it).

So 40% increased from 10% base would mean it goes up to 14%, which is hardly relevant at all and you won’t likely see much difference in behaviour.
Even using 3 lenses would increase the chances to less than 25%.

4

But it’s 40% per rank so at rank 12 that’s 480% increased chance for a sword prophecy which would be a 58% chance per roll (& there’s usually several prophecies available though they might not hit one you want).

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5

I missed that it was per rank. I never used them. I always use 2 double rewards lenses and one to lock monolith. With the increased costs from lenses reroll cost is mostly irrelevant so I never needed to filter prophecy type.

In that case, the formula must be different. Otherwise, using 3 lenses of that type, you’d have more than 100% chance, meaning all of them would be guaranteed to hit, which I doubt is something that happens or even is possible.

Since you can’t have more than 100% chance of something happening in statistics (not talking about the %chance to apply bleed stacks which “overflow”, since that’s not statistics), and given how these things usually work, the likeliest thing that is happening is applying the bonus to the “reverse chance”.

Much like the way to calculate the chances of something with x% chance dropping y times in a row isn’t to apply x% y times but rather to apply 1-x/100 y times in a row, it’s likely that something similar is happening here.

The chance to not roll a sword is 90%. With the 58% bonus from the lens, you apply it to the rest of the prophecies. So rather than increasing the base 10% of the sword you reduce the 90% chance of getting anything else.
This would give us something like 52% to roll something else (which is then divided by the remaining 9 types) and we’d land at a 48% chance to roll a 1h sword.
Which is still a very high number and one that makes it unlikely we don’t get more swords.

So there’s either a different calculation being made (which is the most likely explanation) or there’s some actual bug there.
The chance of not getting a sword 20 times in a row if the sword chance is 48% is 0.002%, which is too unlikely to attribute to RNG.

I still don’t think it’s an actual bug. I think they’re doing some different math where the 480% increased chance has a low impact on the overall chances.
And even if it’s a bug, I’m guessing they’d rather deal with that after reworking CoF next season.

EDIT: reading back I realized I completely messed up the maths. I started using the 58% rather than the 480%. So ignore all that.
The gist is that the formula is likely decreasing the chance of other stuff first, so the overall increase to swords is actually much smaller. This is still what I think is happening.

6

I hope in s5 if these lenses are still a thing that it just makes it so whatever item type lens you use is the only item type shown.

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7

Wait are u indirectly saying lenses can be stacked as in use 3 of same. I just tried 2 lenses of wealth to see if i can get extra rewards and no dice. There’s nothing on lenes saying u cant use multiple but i never tried stacking them. as for some reason its always just been u can only use one of each as an unspoken rule.

8

As far as I’m aware, they stack. I’ve used the one that doubles rewards in two slots for some time and they do seem to provide extra drops as expected, getting triple drops that way, although I’ll be honest and I haven’t actually paid too much attention lately to see if the numbers actually triple. They seem like they do, but it’s been a while since I did prophecies (haven’t had much time to play this season yet, so it’s not fresh in my mind).
And I see no reason why the ones for item type wouldn’t stack either.

As I said, I don’t use the item type boost ones. They don’t seem efficient to use. I find it more optimal to use 2 double ones plus one to lock prophecies to monoliths. This way the prophecies usually cost around 15k and a reroll of 500 is mostly meaningless. I still manage to fill prophecies easily enough with the type I want.

The most efficient setup seems to be one of each double tokens (rewards+prophecy triggers) since those will give you the most (basically x4 drops for around x3.4 cost). For the third one it’s kinda iffy, since repeating those will only give you 50% for another 80/90% cost, but they still seem like the best 3rd lens for quick rewards.

I mostly run the ones I do because I’m lazy and I just want to have a bigger lootsplosion, rather than having to do the prophecies more times.

9

so i just tried the dbl amount ones (x3) and max 1hd sword was 4 with 1 and with 3 of same lenses, i may be buggin though.

10

I don’t think those lenses actually change the prophecy “text”. I think they only apply once you add the prophecy (or maybe only when it drops?). So you should only see it on the prophecy screen, I think.

11

https://imgur.com/a/8mFfkPN
here is what the UI shows for 0-3 lenses visually.

Imma about to test the amount with three on a prop where i only have that prop proc-ing and I’m gonna count. If its a case where it adds more but is a UI visual “bug” imma be very upset.

12

Yeah, there’s a few ways they could do it. If there’s 10 possibilities & one of them is uplifted to 58.4 from 10, they could just renormalise it so the total still sums to zero (90 + 58.4 = 148.4), so the other possibilities now have 6.74% chance & the buffed one has a ~39.4% (if my maths is right) chance? Then it doesn’t matter how high the “chance” for amy given item type becomes & it would never reach 0.

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13

so unless im buggin they dont stack

https://imgur.com/a/mnasjy5

i now need to test same thing with zero lenses and one lense to see if its working at all

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14

I’m pretty sure they did stack at some point, though, as I said, it’s been a while since I actually paid attention to it and I could just be having perception bias at this point.

I’m pretty sure the favor cost stacks, so if the rewards don’t, then that’s a bug (either they shouldn’t stack favor or they should stack rewards).

Either way, there is nothing in the lenses/UI that says they don’t stack, so if they don’t then it needs to be updated to show that it does.
Which, of course, is kinda moot given that we’ll get a rework for next season, so… :man_shrugging:

15

The Alt text states they don’t stack, seeing as you guys are testing it.

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16

so i did one lens with 1hd axe and zero lens
*one lense gave 8 1hd axes and read as 1hd axe x4
*zero lense gave 4 1hd axes and read as 1hd axe x2

https://imgur.com/a/iEkzrWK

theres the pic’s

but yeah the tldr; they dont stack(at least 4 me)
0 lens = reg amount x2 from cof rank 12 bonus
1 lens = (reg amount x2) x2 from lens
2-3 lens(same) = no extra bonus

17

i have no idea why but i cant get lenses to show additional info like that. i tried alt/crtl/alt+ctrl.

18

That was a screenshot from last season, so if the Alt text isn’t working today I don’t know. I haven’t played this season to test it. I’m personally waiting for S5 to come back, and I wanted to finally go through some of my backlog of games.

19

although i dont know your reason for skipping s4, i can say i dont blame you. Its for various reasons but s4 almost made me drop LE

20

I hadn’t noticed that, actually. A better notification would be great. Something like a notification saying that they don’t stack when you slot in your second one.

Although, from the text in that one, it does seem like the item type ones do stack, since those don’t block activities nor do they increase the cost.

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