As we all know we have only seen this form once and that was in the moive battle of the gods. Goku hasnt used that transformation since he fought beerus for the first time. Although SUper Sayain Blue is stronger than the red form of it has a different effect. Super sayain god has healing ability and uses less stamina . He cant go all out yet until he fights Jiren . This tournament is a marathon not a sprint. Does thsi have to do something with this new form . What if goku realizes he can manipualate this from with kaioken to get even stronger. This transformation is gonna go out in Dragon ball Super episode 104 !!!
if you liked this up vote comment below , resteem, and follow for more @onepiece1