private static String shuffleStackDescription(AbilityFactory af, SpellAbility sa) {
        HashMap<String, String> params = af.getMapParams();
        StringBuilder sb = new StringBuilder();

        if (!(sa instanceof Ability_Sub))
            sb.append(sa.getSourceCard().getName()).append(" - ");
        else
            sb.append(" ");

        String conditionDesc = params.get("ConditionDescription");
        if (conditionDesc != null)
            sb.append(conditionDesc).append(" ");

        ArrayList<Player> tgtPlayers;

        Target tgt = af.getAbTgt();
        if (tgt != null)
            tgtPlayers = tgt.getTargetPlayers();
        else
            tgtPlayers = AbilityFactory.getDefinedPlayers(sa.getSourceCard(), params.get("Defined"), sa);

        if (tgtPlayers.size() > 0) {
            Iterator<Player> it = tgtPlayers.iterator();
            while (it.hasNext()) {
                sb.append(it.next().getName());
                if (it.hasNext()) sb.append(" and ");
            }
        } else {
            sb.append("Error - no target players for Shuffle. ");
        }
        sb.append(" shuffle");
        if (tgtPlayers.size() > 1) sb.append(" their libraries");
        else sb.append("s his or her library");
        sb.append(".");

        Ability_Sub abSub = sa.getSubAbility();
        if (abSub != null) {
            sb.append(abSub.getStackDescription());
        }

        return sb.toString();
    }