Int bs pot

I thought full int gives me 66 pot on staffs.. But i got sometimes 65 and 64 how do make sure to get 66?

 

Make sure to have both Create and Advanced Creation level 10 along with 250 Int for higher chance but there is no guarantee to get maximum potential when crafting.

 

Staff potential base on RoundDown(BaseINT/10) and Extra stat not calculate which mean +25 is maximum
Skill Careful Creation increase 10% potential (rounddown) from the equipment your create.
Example you crafting Lil Empress Staff which have base potential 38
With Careful Creation it's base +10%, so it's become 38*1.1 = 41
With your 255 INT will get +25 potential, so total potential will become 41+25 = 66.

66 is the maximum potential you can get if your crafting is SUCCESS.
There is 2 reason why your craft item potential is reduce.
1. Failed Craft
2. When you get slot on your craft item, there is a chance your craft item reduce 0~3 ( this is so far the drop i get ) potential. Basically the more slot you get, the more potential it's drop, but I did get a full potential craft item when getting a 2s SUCCESS craft item.