this.color.setWhite(true);
this.power = new MageInt(4);
this.toughness = new MageInt(7);
// Whenever Jareth, Leonine Titan blocks, it gets +7/+7 until end of turn.
this.addAbility(new BlocksTriggeredAbility(new BoostSourceEffect(7,7,Duration.EndOfTurn), false));
// {W}: Jareth gains protection from the color of your choice until end of turn.
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new JarethsGainProtectionFromColorSourceEffect(), new ManaCostsImpl("{W}"));
ability.addChoice(new ChoiceColor());
this.addAbility(ability);