Armorlax - living, breathing Heavy Armor. And even without this, being 3/22 for 3 Earth makes it better than a Hematite Golem, 3/5 for 5 Earth, and a goody target for Adrenaline. I liked this more in the previous version, this one is a bit too strong.
Chaoterfly - Mass Lobotomize, could be useful against enemies, or in a mutant-like deck, just without Druids but with Microaboms instead to be cheap slots for abilities.
Flygon - Air/Aether/this/Dragons/Quints. Aside from that, could be kind of strong in some other cases as well... Dive is a powerful thing.
Grassodon - Costly, but... with just 50 Light, that isn't hard to get, it can be getting +10/+10 per turn? Ima so Momentum+Quint this one and cause cabbage.
Gravituria - So, now I can instantly kill off enemy creatures with this and Gravity Pull? I don't like where this is going.
Time Scorpion - 2 cards? This'd make my enemy deck out in no time.
Cerberus - Gravityless Devour? Well, at least the fact it's not specifically targeted makes it baloney.
Phase Worker - I'd put a cooldown on it instead of making it a Forever Phase Shield.
Rotten Worm - as the others specified, this'd be lethal due to the 1:1 quantum-damage ratio. You can deal like... okay, Poison is a similar thing, but...
Whaloo - 5 Water for... what's a blue pillar? But it deals one-time damage, so it's alright.