this.addAbility(new WhiteManaAbility());
this.addAbility(new BlackManaAbility());
this.addAbility(new GreenManaAbility());
// {W}{B}{G}, {T}, Sacrifice Abzan Banner: Draw a card.
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new DrawCardSourceControllerEffect(1), new ManaCostsImpl<>("{W}{B}{G}"));
ability.addCost(new TapSourceCost());
ability.addCost(new SacrificeSourceCost());
this.addAbility(ability);
}