The way I play mutation roulette is by taking mutagen that has the opposite effect of a bad mutation I have gotten. For example, to get rid of Deterioration I’ll take Slime mutagen to try to get Fast Healer. But the only mutagen that I can use to counter Carnivorous is Cattle, which usually sticks me with Ponderous or Awkwardly Large. I was thinking about a few new herbivorous mutation categories to give me some choice in the matter.
Boar
Positive: Very Smart, Hooves, Stubby Tail, Lightly Furred, new mutation Tusks (like horns but with flavor)
Negative: Very Smelly, Herbivore, Screamer, Deformed
Basically a Cattle but with less risk and less combat orientation.
Elephant
Positive: Smart, Insanely Strong, Good Memory, Cow Tail, Terrifying, Mammal Pheromones, Padded Feet, Large Tusks
Negative: Very Smelly, Herbivore, Awkwardly Large/Huge, Ponderous, Badly Deformed
Basically a more extreme version of Boar.
Rabbit
Positive: High Night Vision, Furry, Stubby Tail, Whiskers, Quick, Light Eater, Pretty, Disease Resistant, Padded Feet
Negative: Herbivore, Badly Deformed, Light Sensitive, maybe new mutation Small (less strength
Basically a combination of Rat and Bird.
Porcupine
Positive: Quills, Furry, Whiskers, Padded Feet
Negative: Herbivore, Deformed, Ponderous
Basically an excuse to get Quills that acts like a less extreme Rabbit.