Below are all the chests you can find in Lavaxia!
HP Absorber IV
This chest can be found hidden behind a large rock southeast of the Verte Workshop.
Order Crystal x5 / Order Crytal x5
These chests can be found along the southern path.
Strength Pill x2
This chest can be found in the southwestern corner of the area.
HP Steal IV
This chest can be found behind a large rock on the western path.
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