Tip: Make a party with two of the required summon/characters + a fast group damage dealer and you can clear the character usage missions while also farming the required monsters.
Gaelicat x15
Barret’s Lost Chapter: Right Arm with a Mission Pt. 10 (Normal difficulty) has 4 Gaelicats in 3 waves, completing the mission in 4 fights.
Skeleton x20
Sherlotta’s Lost Chapter: Someday Never Comes Pt. 8 (Normal difficulty) has 7 Skeletons in 3 waves, completing the mission in 3 fights.
Thanks
To the DFFOO “Monster Hunter Guide“, an initiative to list all monster locations in the game (maintained by Marvan09).
To @xcaliblur, @mzpro2 and @infinitus who also contributed tips for these stages in our public DFFOO Telegram group, which can be found here: