How to use

putCardsToGravecard

method

in

mage.abilities.effects.common.PutTopCardOfLibraryIntoGraveEachPlayerEffect

@Override
public boolean apply(Game game, Ability source) {
  Player player = game.getPlayer(source.getControllerId());
  if (player != null) {
    switch (targetController) {
      case OPPONENT:
        for (UUID playerId : game.getOpponents(source.getControllerId())) {
          putCardsToGravecard(playerId, source, game);
        }
        break;
      case ANY:
        for (UUID playerId : game.getState().getPlayersInRange(source.getControllerId(), game)) {
          putCardsToGravecard(playerId, source, game);
        }
        break;
      case NOT_YOU:
        for (UUID playerId : game.getState().getPlayersInRange(source.getControllerId(), game)) {
          if (!playerId.equals(source.getSourceId())) {
            putCardsToGravecard(playerId, source, game);
          }
        }
        break;
      default:
        throw new UnsupportedOperationException("TargetController type not supported.");
    }
    return true;
  }
  return false;
}