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