public ContagionClasp (UUID ownerId) {
super(ownerId, 144, "Contagion Clasp", Rarity.UNCOMMON, new CardType[]{CardType.ARTIFACT}, "{2}");
this.expansionSetCode = "SOM";
// When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature.
Ability ability = new EntersBattlefieldTriggeredAbility(new AddCountersTargetEffect(CounterType.M1M1.createInstance(), Outcome.UnboostCreature), false);
TargetCreaturePermanent target = new TargetCreaturePermanent();
ability.addTarget(target);
this.addAbility(ability);
/* {4}, {T}: Proliferate. (You choose any number of permanents and/or players