Random thought: Amorphous should cancel glass jaw. You don't have a head any more.
Isn’t Amorphous a post-threshold mutation? Then again Glass Jaw is a trait… Just saying post-thresh mutations probably don’t need conflicting issues with other post-thresh mutations, since you can only pass one threshold at a time.
If my post-thresh blob can still have asthma I think glass jaw is fine.
Current post-thresh for insects is pretty nill, far as I can tell. Not sure if proboscis lets you drink stuff off the ground and for the record I have no idea what insect limbs or arachnid limbs actually do. Speed up crafting maybe? Insects do get some nice mutations though, like a scorpion-esque stinger (Despite scorpions being arachnids, but it’s still awesome) and the wings are very useful.
Post-Thresh though? I’ve suggested a ton of these over the course of the thread, based on things real bugs can do. Notable exerts include being as hard to swat as a fly (non CBM uncanny dodge), having beetle-like strength (Massive carrying capacity, no extra volume though), and shooting sticky-poison out of your face like a termite.
Keeping with tradition how about being able to suck blood from enemies with a mosquito proboscis? It would be a secondary attack like horns/tails but instead of just doing more damage it directly feeds your hunger/thirst bars?
Or how about molting like a cicada every time you sleep for X amount of turns? No effect but the leavings of your old chitin exterior with which to craft.
Stink bug! An activatable mutation that sends non-zombie/nether/robo creatures flee from the sheer unpleasantness of the choking fumes you release.
Leech maybe? You gain a viscous bite attack against living foes and can clean up any blood spilled on the ground in a manner similar to how cattle graze.
Hornets and Wasps, as per suggested before. Though if they deposit eggs into anything it should be corpses, and take quite some time to hatch. Would be neat if you could lay eggs in zombies before they reanimate to force them to treat you as a friendly after they rise–only to eventually erupt into a swarm of wasps.
*Wasplings should act like the bigger ones in game and chew everything up into paper walls.
Flea or grasshopper like legs mutation: Hop several spaces in a single bound. Bonus points if you don’t get to pinpoint where you land but rather activate it from the mutations menu and then travel anywhere from 3 to 7 spaces each move–can crash into objects for damage and enemies for an attack.
How about a centipede or millipede mutation that acts as a natural variant of parkour? Stacks with the trait as well.
The tiger moth jams bat sonar–dial that up a bit and we could justify a mutation that interferes with turrets and robots targeting systems. Dial it back and we could say nether creatures hunt via sound, making this stealth against horrors. ((Bonus points if nether creatures can see invisible players))
Ironclad beetles live up to their name–honestly, you absolutely could not stomp on flat like most bugs. I’d suggest insects getting the best armor but that should without contest remain the selling point of shell mutations. ((Roomy shell is awesome))
Mantis scythes? Your smaller arms could still be used for fine manipulation but for the most part you’re now limited to threshing your adversaries with massive spiked forelimbs.
Mandibles could evolve into pincers. More of the same really.
Did I mention termites have a gun for a face? Because they do. That gun shoots lethally poisonous glue. What I’m saying here is that it would be cool to give spitters a taste of their own medicine.
Dragonflys almost never fail to capture their prey. Seriously. Maybe an activatable mutation that ‘marks’ a single foe with your focus, making it nearly impossible for you to miss them.
Pheromonarch/Pheromatriarch - Through precise manipulation of pheromones you’re able to masquerade as any insect you please, making them not only friendly towards you but hostile to your foes. By activating the mutation you’ll summon any nearby ants, bees, worms or assorted bugs are nearby. Makes you look extra tasty to anything that eats bugs.
That’s all I can think of at the moment…