How to use

setText

method

in

mage.abilities.effects.common.continuous.AssignNoCombatDamageSourceEffect

public AssignNoCombatDamageSourceEffect(Duration duration, boolean partOfOptionalEffect) {
  super(duration, Outcome.PreventDamage);
  this.partOfOptionalEffect = partOfOptionalEffect;
  staticText = setText();
}

public LaccolithRig(UUID ownerId, CardSetInfo setInfo) {
  super(ownerId,setInfo,new CardType[]{CardType.ENCHANTMENT},"{R}");
  this.subtype.add(SubType.AURA);
  // Enchant creature
  TargetPermanent auraTarget = new TargetCreaturePermanent();
  this.getSpellAbility().addTarget(auraTarget);
  this.getSpellAbility().addEffect(new AttachEffect(Outcome.Detriment));
  Ability ability = new EnchantAbility(auraTarget.getTargetName());
  this.addAbility(ability);
  // Whenever enchanted creature becomes blocked, you may have it deal damage equal to its power to target creature. If you do, the first creature assigns no combat damage this turn.
  Ability ability2 = new EnchantedCreatureBlockedTriggeredAbility(new LaccolithRigEffect(), true);
  ability2.addTarget(new TargetCreaturePermanent());
  Effect effect = new GainAbilityTargetEffect(new SimpleStaticAbility(Zone.BATTLEFIELD, new AssignNoCombatDamageSourceEffect(Duration.Custom, true).setText("")), Duration.EndOfTurn, "If you do, the first creature assigns no combat damage this turn");
  ability2.addEffect(effect);
  this.addAbility(ability2);
}