How does the luck stacks these days?

[QuaseT]

Luck and reroll % are the same and all your mentioned items/ elix stack but the real chance of a reroll is smaller bc adding all those is a wrong calculation, here an example:

All those rerolls work for itself so its basic probability calculation. Adding all those % is wrong bc if u have more than 100% luck you still dont reroll all the time.
Lets say you have fob 20% and elix 30%. It doesnt matter if you reroll 1 or 2 times in reality to get a better item.
The chance for a reroll would be 2/10 *8/10 + 3/10 *7/10 + 3/10 *2/10 = 43%
20% + 30% = 50% is a wrong calculation. If the percentages were added before the reroll (20+30=50) there would be no chance to get a double reroll. You cant reroll twice for the same item but still the system shows the message. So both elix must work seperately.
I thought about creating a guide earlier and ill might do it aswell soon.

[slaaayerrr]

all your mentioned items/ elix stack

any proof from devs will be nice
atm in game i only see that amulets stacking with elix, does lucky relic stacks with amulets and elixir? lucky passive? awakes? hb (as cupcakes)? there is no info about stacking...
if u want to tell that it shows in buffs many lucky things - it isnt proof (2x cotton AA shows 2shields in buffs also, but its only 1 shield which doesnt stack with same 2nd shield)

but the real chance of a reroll is smaller bc adding all those is a wrong calculation, here an example:
The chance for a reroll would be 2/10 *8/10 + 3/10 *7/10 + 3/10 *2/10 = 43%
20% + 30% = 50% is a wrong calculation.

same question - any proof that exactly ur counting is correct?

Adding all those % is wrong bc if u have more than 100% luck you still dont reroll all the time.

maybe all those luck/reroll just adding without ur hard countings but u dont get reroll because some of them dont stacks?

[QuaseT]

any proof from devs will be nice
atm in game i only see that amulets stacking with elix, does lucky relic stacks with amulets and elixir? lucky passive? awakes? hb (as cupcakes)? there is no info about stacking...
if u want to tell that it shows in buffs many lucky things - it isnt proof (2x cotton AA shows 2shields in buffs also, but its only 1 shield which doesnt stack with same 2nd shield)


same question - any proof that exactly ur counting is correct?


maybe all those luck/reroll just adding without ur hard countings but u dont get reroll because some of them dont stacks?

If they dont stack u werent be able to reroll 2 or even 3 times for the same item (even if it doesnt make a difference). A dev confirmation for what stacks would still be nice.

[slaaayerrr]

If they dont stack u werent be able to reroll 2 or even 3 times for the same item (even if it doesnt make a difference).

never saw double reroll for same item if i use lepre+elix (in old times) but it stacks for sure... so, theres no logic
(1st time double reroll for same item i saw when pet "Lucky" was added)

A dev confirmation for what stacks would still be nice.

will be nice also if %luck added to our avatar :/

[Gardenthief]

Luck and reroll % are the same and all your mentioned items/ elix stack but the real chance of a reroll is smaller bc adding all those is a wrong calculation, here an example:

All those rerolls work for itself so its basic probability calculation. Adding all those % is wrong bc if u have more than 100% luck you still dont reroll all the time.
Lets say you have fob 20% and elix 30%. It doesnt matter if you reroll 1 or 2 times in reality to get a better item.
The chance for a reroll would be 2/10 *8/10 + 3/10 *7/10 + 3/10 *2/10 = 43%
20% + 30% = 50% is a wrong calculation. If the percentages were added before the reroll (20+30=50) there would be no chance to get a double reroll. You cant reroll twice for the same item but still the system shows the message. So both elix must work seperately.
I thought about creating a guide earlier and ill might do it aswell soon.

Can you explain your calculation?

From what I understood from your post, you believe that each source of %luck counts as an independent variable, and each source can essentially "reroll at the same time", but will count as 1 reroll in game. So this would be the probability problem: Let R be the chance of rerolling, and F = 0.2 (F being the %luck from fob), E = 0.3 (E being %luck from elixir). By visualising a Venn diagram, and using the addition rule, R = Pr(F U E) = Pr(F) + Pr(E) - Pr(F n E) = 0.2 + 0.3 - 0.2*0.3 = 0.44 (44%). (or 1 - R')

Although this explains why we will never reach 100% reroll chance, I don't think this is entirely the case since elixirs are involved, and we know that elixirs can stack cumulatively. Maybe there's a formula sts uses that we don't know of, or a soft cap exists like Psycho suggested.