Bamboo Wall

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• Utility: Wood Bamboo Wall
• Requirement: 30 woods
• Destruction Panel (F7): 9 woods

Upgrade 1 (F6)

• Utility: Stone Bamboo Wall
• Requirement: 30 stones
• Destruction Panel (F7): 12 woods + 5 Bronze ingots

Upgrade 2 (F6)

• Utility: Bronze Bamboo Wall
• Requirement: 20 woods + 15 Bronze ingots
• Destruction Panel (F7): 12 woods + 12 stones