How to use

apply

method

in

mage.abilities.effects.common.PutCardFromHandOntoBattlefieldEffect

  @Override
  public boolean apply(Game game, Ability source) {
    if (AddendumCondition.instance.apply(game, source)) {
      new PutCardFromHandOntoBattlefieldEffect(filter).apply(game, source);
    }
    return ExileSpellEffect.getInstance().apply(game, source);
  }
}

  @Override
  public boolean apply(Game game, Ability source) {
    Player player = game.getPlayer(source.getControllerId());
    if (player == null) {
      return false;
    }
    int xValue = source.getManaCostsToPay().getX();
    FilterCreatureCard filter = new FilterCreatureCard("a creature with converted mana cost " + xValue);
    filter.add(new ConvertedManaCostPredicate(ComparisonType.EQUAL_TO, xValue));
    if (new PutCardFromHandOntoBattlefieldEffect(filter).apply(game, source)) {
      return new ReturnToHandSourceEffect(true).apply(game, source);
    }
    return false;
  }
}

putIntoPlay.apply(game, source);