I had it appraised at a famous magic shop recently, so it's guaranteed authentic. Thank you! Dual Lands Powerful mana sources that have both land types. - Card Name: Tropical Island - Card Type: Land - Illustration: Jesper Myrfors - Game Name: Magic: The Gathering - Effect: Add either {G} or {U} to your mana pool. Counts as both forest and island. Thank you for looking.