An educational 'collectible card game' that is built around the competition of trees for resources in order to dominate in the canopy. In the course of the game, you must deal with the natural disasters, sunlight, and combat with other trees. Painstakingly researched, the game is exceedingly detailed and amusingly illustrated.Each deck consists of the same 100 cards, which is all you need to play--though a second deck adds a little variety. There are rules for three levels of games (seedling, timber, and elder stage) that slowly introduce all of the mechanics.You can get more information and order at http://www.mightytrees.com/ - BoardGameGeek