As Kale learned to harness the absolute power of her Super Saiyan form and perfectly synchronized her attacks with Caulifla, Goku was put on a complete defense, but still held his own enough to reject aid from Frieza. Once using Super Saiyan God, he took both Universe 6 Saiyans at the ...
Ultra Koku's evolution requirements are a reference to the Ritual of the Super Saiyan God, requiring 6 Saiyans of pure heart to come together and funnel their energies into another, forcing the transformation to a Super Saiyan God. Hence, 2 of each Koku rarity, as 2 Vegus and 2 Kogans ...