Influences

Runescape

• Grand Exchange (Book 5)
  
• Skill System
• Quest System
• Be All Classes
• Base Tiers for Gear
• Runes (Book 2)
  
• Dungeons that Use Your Skills

World of Warcraft

• 4 Major Leaders in 4 Lands
• Mounts
• Weapon / Gear Sockets for Runes (Runes are the Conduit of Elemental Energy to be Imbued into Weapons) (Ex: Fire Runes are Attuned to Hold and Re-Direct Fire Energy to Make a Flame Sword)
• Dungeons

Harry Potter

• School of Gaia (Book 5/6)
  
• Diagon Alley type Market (Book 5/6)
  
• Dungeon Puzzles like the PC Games
• Collectible Cards like System (Book 5/6)
  
• Quidditch Like Game (Book 6/7)
  
• Fun Money Fun Rewards (Bertie Bott's Beans Collection)

Naruto

• Chakra (Book 5) Elemental Power (Book 1-4)
  
• Elemental Natures
• Talk to Animals (Books 1+)
  

Inuyasha

• Demons (Book 6)
  
• Priests / Monks
• Half-Demons

Tokyo Ravens

• Familiars (Books 1+)
  

Avatar the Last Airbender

• 4 Elements / Nations
• Ether Users are like Avatar

Final Fantasy

• Ether

Fullmetal Alchemist

• Alchemy (Profession and Combat Skill) (Can Enhance Weapons or be Spells themselves) (Book 5/6)