i just want to say, as i havent seen any post on the internet talk about this, the grind to craft kingdom hearts dark road materials in order to craft 1 of each item is legendarily insane.
among the the total list of resources needed about 8 are reasonable (need 10-120 or so total each) and need just about 550,000 bp total.
but the following numbers are what does it (and these numbers are actually likely about 20% less than the actual number):
Starry Sand x18,178
Bright Shard x18,058
Power Shard x4,972
Energy Shard x2,182
Serenity Shard x2,182
Twilight Shard x2,182
Iron Ore x2,292
Copper Ore x1,824
Burnt Coal x5,145
Scorching Sand x2,575
Strange Leaf x4,910
Strange Bulb x4,680
White Flower Dew x2,340
Starry Sand and Bright Shard can be contained in any fight.
ive let the auto-battler grind for over 100 hours, in which ive beaten the story, bought and maxed every character card, found every enemy and probably all of them to their 3rd tick (defeat 100) at least, and xehanort to level 52.
and for Starry Sand and Bright Shard each, I have about 500 of them each. unless there is a more targeted grind method, thats about 4,000 hours of grind.