Method buildValidDesc

forge-core/src/main/java/forge/util/Lang.java:225–227

(Collection<String> valid, boolean multiple)

    }

    public String buildValidDesc(Collection<String> valid, boolean multiple) {
        return buildValidDesc(valid, multiple ? "and/or" : "or");
    }
    public String buildValidDesc(Collection<String> valid, String join) {
        return joinHomogenous(valid.stream().map(s -> formatValidDesc(s)).collect(Collectors.toList()), null, join);
    }