How to use

Select the number of slots for the Ability Stone
Adjust the Goal numbers to your preference. You can focus a certain engraving or minimize negative outcomes (higher numbers focus the engraving)
Follow the “recommended” options for the best chances.
Update the calculator with the in-game success / fail result
Repeat until the Ability Stone is complete
Use the Undo button if you made a mistake or Reset button to try different possible outcomes
Often the goal becomes impossible to achieve. (Ex. If the Engraving A target is 9 and you have succeeded 6 times, but only 2 chances remain) In this case, the outcome probabilty displays as 0%, so the goal needs to be readjusted. This will be automatically adjusted for you if you select the Auto Adjust option

Ability Stone Calculator