if (isDoubles) {
                    if (template.tier === 'Unreleased') return 'Unreleased';
                    const genPrefix = (genNum === 6 ? '' : gen);
                    let defaultTier = "DNU";
                    let banlist = Tools.getFormat(genPrefix + 'doublesou').banlist;
                    if (!banlist) {
                        defaultTier = "DOU";
                    } else if (banlist.indexOf(template.species) >= 0 || banlist.indexOf(template.baseSpecies) >= 0) {
                        return "DUber";
                    }
                    banlist = Tools.getFormat(genPrefix + 'doublesuu').banlist;
                    if (!banlist) {
                        defaultTier = "DOU";
                    } else if (banlist.indexOf(template.species) >= 0 || banlist.indexOf(template.baseSpecies) >= 0) {
                        return "DOU";
                    }
                    banlist = Tools.getFormat(genPrefix + 'doublesnu').banlist;
                    if (!banlist) {
                        defaultTier = "DUU";
                    } else if (banlist.indexOf(template.species) >= 0 || banlist.indexOf(template.baseSpecies) >= 0) {
                        return "DUU";
                    }
                    if (template.tier === 'LC' || template.tier === 'LC Uber' || template.tier === 'NFE') return 'NFE';
                    return defaultTier;
                }