All-In-One Materia Chart

[TerahValeth]

One comment - Don't fill up the "empty" values with the previous value because the Grade (I used this term instead of Tier) directly affects multi-materia melds.

A +1 Craftsmanship is Grade 1 where chances are concerned and not Grade 2, 3 or 4.

Not 100% sure what empty values you're referring to, unless you mean how certain grades of materia can have possible values that are the same (Grade 1: 1,1,1,2). I don't feel it should be shown as just 1,2 since when you break the equipment int materia you have the same chance to get that 2 value as you have to get a 10 on one that's (7,8,9,10), where as you have as good a chance at getting a 1 value as you have of getting a 7 8 or 9 individually.

Also the total bonus has a much greater effect on the chances for multi-slotting than the grade does: the chance to slot 2 Tier III's that grant +15 STR (+30 total), is worse than the chance to slot a Tier III @+10 STR with a Tier IV @+16 STR (+26 total).