super(ownerId, 132, "Cabal Coffers", Rarity.UNCOMMON, new CardType[]{CardType.LAND}, "");
this.expansionSetCode = "HOP";
// {2}, {tap}: Add {B} to your mana pool for each Swamp you control.
Ability ability = new SimpleManaAbility(Zone.BATTLEFIELD,
new DynamicManaEffect(Mana.BlackMana, new PermanentsOnBattlefieldCount(filter)),
new GenericManaCost(2));
ability.addCost(new TapSourceCost());
this.addAbility(ability);
}