Agreed, several creatures have really fallen behind since the full release, and especially since the new kibble system. To reduce redundant posts, I wanted to post my thoughts on the worst of them:
Araneo: Their webs are their only thing going for them right now. I think they should be able to climb walls like mini Megalanias, Enforcers, or Rock Drakes, allowing them to be interesting traps in caves without overpowering Broodmother's fight more. Kodking194's zip line ability seems cool too.
Carbonemys: While definitely an early-game tame, I'd like to see them get a defensive ability like withdrawing within their shell. They're pretty outclassed as tanks by Doeds, Gasbags, and Rock Elementals so I'd like to see them get a bit closer to the competition.
Compy: Compies have a problem with attacking things due to their small range. They currently don't attack survivors on foot sometimes too because of it. Perhaps they could get something like a leap attack to help give them range and agility, making potential packs chaos to fight. Or maybe they could get an ability when tamed, like how glow pets detect nearby max level dinos when on the shoulder.
Lymantria: Worse stats than other fliers, harder to tame than a Pteranodon, and can be flown only 2 levels earlier than a Ptera. Overall I feel there's no reason to go after these when you can get a Ptera. Perhaps they could passively generate Silk like Achatinas make paste, or if Lymantrias have buffed stats or a way to aim their farts - as some examples.
Pulmonoscorpius: Really slow and easy to fight even on foot with a Spear, not to mention at range. Scorpions suffer from slow speed and low reach. I would like to see deadlier scorpions - perhaps increased torpor per attack or larger attack AoEs. Knockouts from scorpions are harder and riskier than using Tranq Arrows or Darts, so I would like to see people rewarded for doing melee knockout tactics with better torpor gain on creatures at least.
Titanoboa: Considering the high ceiling they have to tame, their lack in utility really shows. Their taming method could change, but I like how unique they are to tame. Instead, I'd like to see them gain a new ability, like a constricting ability. It could act like a bear trap until killed or even also do damage similar to a stationary Kaprosuchus.
