this.color.setBlack(true);
this.power = new MageInt(2);
this.toughness = new MageInt(2);
// All Slivers have "Pay 2 life: Return this permanent to its owner's hand."
Effect effect = new ReturnToHandSourceEffect(true);
effect.setText("Return this permanent to its owner's hand");
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, effect, new PayLifeCost(2));
this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new GainAbilityAllEffect(ability, Duration.WhileOnBattlefield, new FilterPermanent("Sliver", "All Slivers"), "All Slivers have \"Pay 2 life: Return this permanent to its owner's hand")));
}