Shard Fusion lets you fuse certain UR, SR and R Shards you get in order to obtain certain UR, SR and R shards (M shards cannot be obtained or used in fusion). There are two types of fusion: Rank-Up for shards of a higher rarity and Same Rank for shards of the same rarity.
Shard Fusion is unlocked at Player Level 30. You access it through Souls on the main screen.
Shards can be obtained through Summoning, Airship, Delivery, Exploration, Hard Stages, Rebates, the Restaurant, Team Up, certain Shops and certain Events (see Shards and respective articles for details).
Note: Both types of fusion can give shards for the same Food Soul that the ones you used.
Use Rank-Up to get shards of a higher rarity that the shards fused.
|SR shards x5||60% chance: UR Shard x1|
40% chance: SR Shard x2
|R shards x5||SR Shard x1|
Probabilities of getting certain shards, based on users' experience.
Use Same Rank fusion to get shards of the same rarity that the shards fused.
|UR shards x3||UR Shard x1|
|SR shards x3||SR Shard x1|
|R shards x3||R Shard x1|