In dragon ball super, the super shenron can grant any wish with no limitation and much more powerful than reguler shenron. But, I wonder if he can grant wish if for example someone want to be more powerful than zeno, or any other too big wish. What do you think?
Dragon Balls can't grant wishes that are more powerful than their creators (Link about Shenron and Porunga stating this but it applies to all Dragon Ball dragons)
And in Dragon Ball Super it is stated than nobody is more poweful than Zeno, so no, he couldnt grant a wish to be more powerful than Zeno
"Zen-Oh is the most powerful character in the entire Dragon Ball franchise"