Try to lower the opposing tree into the ground before they can lower you! You can do this by using cards that damage your opponent, heal you, etc. Every card costs a certain amount of energy. You gain energy every turn. Press the end turn button to end your turn. You can hover your mouse over your cards to view them, and click to use them.
press a,b,c,d,p or the arrow keys for free energy' press 0-9 for a lot of energy if you get to -1000 energy, you lose all of your health if you get to -50 energy, just press the y key getting to -1000000 energy makes you lose all of your health for 2 games in a row