Alchemist (Chapter 2, 3 and 5):
There's several possible ways to get this dressphere:
WAY 1 - meet Clasko in Chapter1 during 'Foggy Fiend Frenzy!' sidequest mission in Mushroom.
- MAKE SURE TO TALK TO HIM after he's being told to show you the way!
- after completing this mission, return to savesphere found at the entrance to 'Mushroom rock' screen.
- he'll be located on the right.
- talk to him and say [The more, the merrier!].
- then participate in 'Cuckoo for Chocobos!' mission on Mi'ihen in Chapter 2, where Clasko will help you.
- after wasting the boss enter 'M - agency, f' screen and invite both Clasko and Calli onboard (Calli will come onboard only if you were able to get a chocobo for her).
- you don't HAVE to invite him onboard, as he will still appear in Calm lands in Chapter3 then, but better be safe than sorry
- finally go to Calm lands, enter the 'Facility ruins' and complete 'Clean Sweep' mission.
- this dressphere is yours.
WAY 2 - if you did not participate in 'Foggy Fiend Frenzy!' mission or didn't invite Clasko on Celsius, then find him in Chapter 2 on 'Mushroom rock' screen just before you enter 'M - ravine path'.
- once you talk to him, he'll mention something about how he must find his place in the world.
- he'll run off to unknown location.
- if you haven't attempted 'Cuckoo for Chocobos!' mission yet, he will appear for help when Yuna is supposed to get to the point of boss impact.
- if you make it to impact point under time limit and after wasting the boss, enter 'M - agency, f' screen and invite both Clasko and Calli onboard (Calli will come onboard only if you were able to get a chocobo for her).
- you don't HAVE to invite him onboard, as he will still appear in Calm lands in Chapter 3 then, but better be safe than sorry
- you also don't HAVE to make it to point of impact under time limit, as he will still appear in Calm lands in Chapter 3 then, but better be safe than sorry.
- if you have already attempted 'Cuckoo for Chocobos!' mission, then you'll find him in Calm lands in Chapter 3 - complete 'Clean Sweep' mission and you get this dressphere.
WAY 3 - if you invite Clasko onboard in Chapter 1 or 2, but fail to stop by Calm lands in Chapter 2, he'll jump ship at start of Chapter 3 (you'll get a message about him doing so) and he'll appear there automatically in Chapter 3.
- complete 'Clean Sweep' mission and you get this dressphere.
EXTRA TIP - If you've met the requirements for getting Clasko to Calm lands, then this dressphere can be scored even in Chapter 5.
WHAT YOU MUST NOT DO!!! - if you do not talk to Clasko in Chapter 1 or Chapter 2, you cannot get this dressphere in current game.