team-validator.ts
line ~373

		if (ability.id === 'battlebond' && template.id === 'greninja' && ruleTable.has('obtainableabilities')) {
			if(ruleTable.has('obtainableformes')) {
				template = dex.getTemplate('greninjaash');
			}
			if (set.gender && set.gender !== 'M') {
				problems.push(`Battle Bond Greninja must be male.`);
			}
			set.gender = 'M';
		}