when it is your turn, type in either the number of the card you wish to use, or "end turn" to end your turn. ~~~ hint: the card format is like this: (damage) ~ (cost) so (24) ~ (18) would deal 24 damage to your opponent, and cost 18 "force" ~~~ you get 2 cards each turn, and anywhere from 1 to 50 "force" each turn. There is no limit on the amount of cards you can/must use per turn.