There is recent (v.1.0.0.3) info about Arcana Trainers Location, requirements and study cost.
 
 

Fire Arcana

Trainer location – Redstone Keep.
 
Cost: 100 Jade.
 
Requirement: Clear Pahoehoe Lava Void in Redstone Valley
 
Place:
 
 

 
Dungeon Info:
 
 

 
 
 

Ice Arcana

Trainer location – Frost Valley.
 
Cost: 100 Jade.
 
Requirement: Clear Zagros Giant Formation within the Zagros Mountains
 
Place:
 
 

 
Dungeon Info:
 
 

 
 
 

Thunder Arcana

Trainer location – Triptych Rock.
 
Cost: 100 Jade.
 
Requirement: Clear Leviathan Bone Caves (or Bone Caves) in Twinluna Valley
 
Place:
 
 

 
Dungeon Info:
 
 

 
 
 

Light Arcana

Light Arcana – Halfmoon Hills.
 
Cost: 100 Jade.
 
Requirement: Clear Arbor Palace in Umbra Cliffs.
 
Place:
 
 

 
Dungeon Info:
 
 

 
 
 

Dark Arcana

Trainer location – Nagukka.
 
Cost: Legendary equipment above level 12.
 
Requirement: None.
 
 
 

Alchemy Arcana

Trainer location – Camel Bell Bazzar.
 
Cost: Legendary equipment above level 12.
 
Requirement: None.
 
 

 
 
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