How to use

getTurns

method

in

mage.players.Player

  @Override
  public boolean applies(GameEvent event, Ability source, Game game) {
    if (event.getType() == EventType.CAST_SPELL && event.getSourceId().equals(source.getSourceId())) {
      Player controller = game.getPlayer(source.getControllerId());
      // it can be cast on other players turn 1 - 3 if some effect let allow you to do this
      if (controller != null && controller.getTurns() <= 3 && game.isActivePlayer(source.getControllerId())) {
        return true;
      }
    }
    return false;
  }
}

this.maxAttackedBy = player.getMaxAttackedBy();
this.manaPool = player.getManaPool().copy();
this.turns = player.getTurns();