The Four swords, being link and three doppelgängers of himself were created after Link pulled the storied ‘four sword’ from it’s pedestal to defeat an ancient evil known as Vaati. These dopplegangers each have their own personality and skill sets that they would use to help link along his journey.
Red- the shy but innocent member that uses fire as his primary method of attack. While short in stature, he has a big heart.
Blue- Fight first and ask questions later, Blue is boastful and ready to attack at a moment’s notice. Full of pride and aggression, blue is always the first to strike.
Purple- Also referred to as Vio, Purple is the brains of the operation. Heavily bookread and level headed, he keeps the peace while raining arrows from afar.
Legend of Zelda- Four swords
by Shen: King of the Mist