Originally posted by psycho gundam
well, how many of those do you think he can launch in combat? and remain safe from the explosion?
At least one when at full power. I mean it shouldn't take him very long when it only took him like 5 seconds to charge up the blast at such a restricted state. Also, it was said in the manga that the people in Dragon Ball could control their ki blasts meaning that they can expand it, retract it, make it cause more damage, make it cause less damage, etc.
We know that he has planetary++ durability (he survived the destruction of Namek with very limited ki, when his body was cut in half) and that he can survive in space. So what's to stop him from sending one of those towards his opponent and then flying up to space?
goku also neutralized one of frieza's death balls iirc, wouldn't be surprised if thanos could just slap it away
That's because Goku and Trunks utilized their ki energy. Thanos doesn't, so there is nothing to prove what you said.
I personally don't think Thanos would need to even move after putting shields up. He could just stand there and let Frieza unload everything he has on him until Frieza runs out of energy reserves like he did against Goku. Then slap and smirk for the win.