He is a white haired Saiyan that appears in Dragon Ball Ultra Blast.
Kay's brother is Turlas. He has controlled the Super Saiyan form. His Super Saiyan 4 form isn't controlled yet. He once killed Broly when his brother wished him back. His strongest attack is the Explosion Orb. He once achieved Ascended Super Saiyan. He's a part of Dragon Ball Ultra Blast.
He is the second most important character in Dragon Ball Ultra Blast.
Black Orb Attack
Neo Wave (Super Saiyan 3 only)
Blow Me Away.
Super Saiyan 2
Super Saiyan 3
Super Saiyan 4