this.subtype.add("Human");
this.subtype.add("Assassin");
this.power = new MageInt(1);
this.toughness = new MageInt(1);
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new DestroyTargetEffect(), new TapSourceCost());
ability.addTarget(new TargetCreaturePermanent(filter));
this.addAbility(ability);
}