RULES:
to start, run the SpriteScreen.java class.
pick 6 cards, set their stats and classes.
You have a max of 30 hp and 30 atk to assign to your 6 cards.
the next player repeats the same process
in game:
click a unit on your side, then click a unit on the enemy side to attack.
attack dmg is calculated based on the classes you chose for characters
classes have special abilities.. (?)
last rebase test
you lose if all your units die