I would like to see Galactus make Ultron and Nimrod heralds what do you think?

How powerful would these to be could they take out Silver Surfer or Thanos?

A pair of robots. Not a chance they get made.

Ultron beat Avengers once and Nimrod beat Juggernaut and the X-Men these are badazz Robots without cosmic powers that would be over kill.

Galactus makes Heralds from normal beings; Terrax was an exception.

Thats not what I am asking what about the Krytonian what about the Destroyer these Robots are unique they are already powerful and because Nimrod already seeks out mutants he would perfect to find Planets for Galactus.

a cosmic powered Nimrod?...eeesshhh,a little scary