Same Interface for Classes with some common attributes

public class CardContainer {
    List<Card> cards;

    public static void main(String argv[]) {
         CardContainer cardContainer = new CardContainer();
         cardContainer.addCard(new CardWithActions());
         cardContainer.addCard(new CardWithBonus());
         // I need to do something like
         String actionReward = cardContainer.getCard(0).getActionReward();
    }

    public CardContainer() {
        cards = new ArrayList<>();
    }

    public void addCard(Card card) {
        cards.add(card);
    }

    public Card getCard(int position) {
        return cards.get(position);
    }
}


public abstract class Card {
    protected String cardName;
    protected List<String> cost;
    protected String effect;

    public Card() {
    }

    public Card(String cardName, List<String> cost, String effect) {
        this.cardName = cardName;
        this.cost = cost;
        this.effect = effect;
    }

    public String getCardName() {
        return cardName;
    }

    public void setCardName(String cardName) {
        this.cardName = cardName;
    }

    public List<String> getCost() {
        return cost;
    }

    public void setCost(List<String> cost) {
        this.cost = cost;
    }

    public String getEffect() {
        return effect;
    }

    public void setEffect(String effect) {
        this.effect = effect;
    }
}

public class CardWithActions extends Card {
    private String action;
    private String actionReward;
    private String actionCost;

    public CardWithActions() {
        super();
    }

    public CardWithActions(String cardName, List<String> cost, String effect,
                           String action, String actionReward, String actionCost) {
        super(cardName, cost, effect);
        this.action = action;
        this.actionReward = actionReward;
        this.actionCost = actionCost;
    }

    public String getAction() {
        return action;
    }

    public void setAction(String action) {
        this.action = action;
    }

    public String getActionReward() {
        return actionReward;
    }

    public void setActionReward(String actionReward) {
        this.actionReward = actionReward;
    }

    public String getActionCost() {
        return actionCost;
    }

    public void setActionCost(String actionCost) {
        this.actionCost = actionCost;
    }
}

public class CardWithBonus extends Card{
    private String bonusType;
    private String bonusDescription;

    public CardWithBonus() {
    }

    public CardWithBonus(String cardName, List<String> cost, String effect,
                         String bonusType, String bonusDescription) {
        super(cardName, cost, effect);
        this.bonusType = bonusType;
        this.bonusDescription = bonusDescription;
    }

    public String getBonusType() {
        return bonusType;
    }

    public void setBonusType(String bonusType) {
        this.bonusType = bonusType;
    }

    public String getBonusDescription() {
        return bonusDescription;
    }

    public void setBonusDescription(String bonusDescription) {
        this.bonusDescription = bonusDescription;
    }
}