void done() {
                            StringBuilder sb = new StringBuilder();
                            for (Card reveal : revealed) sb.append(reveal.getName() + "\n");
                            JOptionPane.showMessageDialog(null, "Revealed Cards:\n" + sb.toString(), card.getName(), JOptionPane.PLAIN_MESSAGE);
                            //adding mana

                            Ability_Mana abMana = new Ability_Mana(card, "0", "1", 2 * revealed.size()) {
                                private static final long serialVersionUID = -2182129023960978132L;
                            };
                            abMana.setUndoable(false);
                            abMana.produceMana();

                            stop();
                        }