How to use

mage.abilities.effects.common.combat.BlocksIfAbleAttachedEffect

constructor

@Override
public BlocksIfAbleAttachedEffect copy() {
  return new BlocksIfAbleAttachedEffect(this);
}

public Spirespine(UUID ownerId, CardSetInfo setInfo) {
  super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT, CardType.CREATURE}, "{2}{G}");
  this.subtype.add(SubType.BEAST);
  this.power = new MageInt(4);
  this.toughness = new MageInt(1);
  // Bestow 4G (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
  this.addAbility(new BestowAbility(this, "{4}{G}"));
  // Spirespine blocks each turn if able.
  this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new BlocksIfAbleSourceEffect(Duration.WhileOnBattlefield)));
  // Enchanted creature gets +4/+1 and blocks each combat if able.
  Effect effect = new BoostEnchantedEffect(4, 1, Duration.WhileOnBattlefield);
  effect.setText("Enchanted creature gets +4/+1");
  Ability ability = new SimpleStaticAbility(Zone.BATTLEFIELD, effect);
  effect = new BlocksIfAbleAttachedEffect(Duration.WhileOnBattlefield, AttachmentType.AURA);
  effect.setText("and blocks each combat if able");
  ability.addEffect(effect);
  this.addAbility(ability);
}