Dusk Wrote:I think it's actually +-ceiling((stat + 1)/10). MoNs are 8-(10)-12 attack, things that add one stat like Spiegelmann pendants are 0-2, etc. I dunno how Gacha changes things, there's a different formula for sure. I believe stims cause the item to use the Gacha formula.
I think the simplest way to describe it is 1+floor[stat/10] range.
There's also a cap of 5 either way on normal drops.
Gacha increases this - both by adding 1 to the possible range at all levels, and by increasing the cap to 7. For 0-9 stats it is +-2, etc.
Apparently, bosses also increase this cap, to an unknown amount - Ive seen some Blue pinakas that were outside even the gacha range.
As far as I know, ingame exchanges are either fixed or use the same rates as the normal drops - eg. the CPQ items. Gold boxes on the other hand, are using the same system as Gachapon and give the full range of 7.