Rules Documents:

• Official Rules Summary – v1.2 updated Jan 21, 2017
  Source 2: (via BGG)
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• Compatibility Reference (2350/2360)
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• Multiplayer Rules
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• Current Rulings  – updated Nov. 3, 2016
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• Ophidian Tournament Rules – updated Dec. 3, 2016
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• Ophidian Tournament Score Sheet