How to use

getTargets

method

in

mage.abilities.keyword.SoulshiftAbility

@Override
public void trigger(Game game, UUID controllerId) {
  this.getTargets().clear();
  int intValue = amount.calculate(game, this, null);
  FilterCard filter = new FilterCard("Spirit card with converted mana cost " + intValue + " or less from your graveyard");
  filter.add(new ConvertedManaCostPredicate(ComparisonType.FEWER_THAN,  intValue + 1));
  filter.add(new SubtypePredicate(SubType.SPIRIT));
  this.addTarget(new TargetCardInYourGraveyard(filter));
  super.trigger(game, controllerId); //To change body of generated methods, choose Tools | Templates.
}