The 1-3-3-3 formation in soccer is a tactical setup that balances defensive strength with attacking potential, featuring one goalkeeper, three defenders, three midfielders, and three forwards. This formation not only enhances defensive stability and midfield control but also provides diverse attacking options, making it adaptable to various game situations. However, teams must be mindful of its vulnerabilities, such as susceptibility to counter-attacks and the need for high player fitness and discipline.