Heres what i think.
Indoraptor: with the addition of immunity to distraction and stuns, indoraptor is finally relevant again. It now slaughters tryko and monostego, while also having a chance at mauling thor and tenento as well. Expect this thing to be back in teams, although im wondering if the gen 2 version is better or not.
Magnapyritor: got it’s hp back. Nuff said
Procera: massive 750 hp buff on an already oppressive monster means that this hing will be flooding arena even more now, which means itll likely be tyrant now. Get those counters ready
Monomimus: gained distracting strike and rampage, as well as a buff to its stats. Not quite the same level as procera, but it’s at least usable now.
Ardentismaxima and Geminititan: Ardentis gained a bunch of attack and hp, as well as gaining armor and the 30% crit chance. Gemini gained immunity and more speed, but lost a little bit of attack and hp. Both are still going to become tyrant and stay tyrant respectively, but i think itll be down to preference as to which youd like to use.
Monostegotops: took a massive blow by losing attack and hp and its whole movekit in exchange for nothing. No longer tyrant and is middle of the pack now
Rat (in my opinion): with the addition of Smilonemys, once people begin to unlock it, rat usage may start to drop. Access to swap-in stun, 50% armor, enough damage to one shot it turn 1, as well as a variety of other stuff, this thing looks tailored to stop it. This thing also does things outside of countering it, unlike Smiloceph. Definitely gonna be a force in the meta and likely a tyrant straight away, and rat will suffer once people start unlocking it