Originally posted by illadelph12
I'll post some clips when I get home from work. Behind a firewall here. But basically Voltron slays some pretty high end Robeasts on a regular basis, and it could be argued that these Robeasts are at least Mid to High Herald tier (planetary threats). There's no matter manipulation or anything like that, but Voltron is exponentially more powerful than, say, Ironman.
I think there are many low heralds that are legitimate planetary threats, it all comes down to the powerset, really. If they are higher than Iron-man they should be at the very least low heralds.