Given what had happened recently with powers of the universe reaching new heights, Nero figured it was only a matter of time before more than himself, Zhalla, Erebos or any other person reaches a similar height of power— Ward seemed quite close to it too. Maybe Nasu had also managed? That would be pretty excellent, Nero really needed to check in with him too.
Now, while those four aside from Nero weren’t an immediate worry since they had all chosen to act in Namek’s defense. There was the threat of others doing less than stellar things, those with less than good intentions. For sake of example, Zhalla had warned Nero about Lottus, and now Gandigan had as well.
As such, Nero wanted to reach out to others that also saw Namek as home while scouting for other potential allies.
The first that came to mind to touch base with would of course be his brothers— Pankaa and Chime. The two weren’t weak by any means, they were well above average in terms of strength, but the universe wasn’t dealing with averages now, it was dealing with extremes. If Nero was ever not around to help or protect either of them, he would much prefer that they were at least as strong as him so that they could protect themselves and each other. Their safety was one of the many things Nero took immensely seriously.
So, finding a wide open and unused expanse of the Maima Fields, one typically used by various locals to spar, Nero conversed momentarily with those also using it before telepathically calling on Pankaa and Chime to come over for some serious training!