Here is the full list of all 20 The Swords of Ditto achievements.
Break the Curse of Ditto
Equip 12 limited edition Stickers
Swap a Sticker with someone on Ditto
Find all of Ditto's History Logs
Defeat Mormo with all of her Anchors active
Get a limited edition Sticker from Ock
Complete an Offering
Equip a limited edition Sticker
Reverse time by a day
Complete a Dojo
Defeat Mormo for the first time
Destroy all of Mormo's Anchors in a story
Destroy one of Mormo's Anchors
Open a crate
Find a Toy of Legend
Meet Serendipity
Equip a Sticker
Visit the grave of a failed Sword of Ditto
Upgrade your bomb capacity to maximum
Find all Toys of Legend