DoomBots and DeathBots are actually not even uncommon, they are considered common. I'm not sure that is really a problem, it hasn't been someone anyone has really noticed before now -- they show up in large numbers, but if they were in small numbers only then their ability to power up would be something that would never come into play because you'd kill them too fast.
SilenceBot is indeed classed as rare, not because it is super difficult, but because its ability is so specialized that it would be really... well, odd, if there were a ton of them at once. It could quickly get unwinnable with all of them redirecting damage between each other at 75% scale.
Hmm, wait, I dont understand just how this works.
Is it "rare" as in "rare that it's chosen to appear in a mission" or is it instead rare as to how many of them might appear in a mission, like say, the very low numbers that things like DiamondBots show up in?
Generally when I see SilenceBots in any given mission, there usually are lots of them. They tend to be one of the most numerous bots in any mission they show up in. And their ability doesnt seem to work on each other? Granted, they can still be *nasty* indeed. But yeah, I wondered if there might be a bug there?
As for the DoomBots.... well, I'll see what happens. This is in a Misery run, by the way, heh. It also chose Vipers as one of the bosses. You know, to make sure there isnt ANYTHING left, as opposed to at least a smear on the ground where the Exos used to be. DoomBots actually usually dont give me much trouble, but those ViperBots do. Nasty little snots.