This deck is revolved around locking your opponent out with cards such as Sandman, Maximus and mainly Master Mold. Then you capitalize on it with Ronan to gain a lot of power (like a reverse Devil Dino). We have a couple lines of plays we can pull in order to achieve that win con but first let's go over the essential cards:
Ronan- the main powerhouse of our deck, if we manage to lock our opponent out he can reach 13-15 power very easily. He also works really well into other ramp strategies (mainly Electro) since they mostly play 1 card each turn.
Master Mold- MM is one of the new cards arriving to Snap and he is a must in every Ronan deck. MM does an amazing job at locking our opponent out by giving them 2 Sentrys, this works really well also against swarm strategies that want to empty their hands in order to counter your Ronan since Ronan will always have 7 power at least.
Wave- Wave's main role here is to help us ramp into our big cost cards. You mainly want to use her to be able to play Sandman on 4 thus countering any swarm strategies by only limiting them to one card per turn. And since our deck thrives upon being able to play our big boys (or soak with Sunspot), we don't mind that side effect.
Sandman- SM is one of our main lockdown tools. With SM you can counter strategies such as Kazar, Sera, Mister Negative and the Infinitry Stones (to some extent). His ability to lock down our opponent makes it so our Ronan will always have at least 11 power and with more experience you can guess what type of cards your opponent will try to play against you in order to counter it.
The rest of the slots are pretty flexible, add Maximus as soon as you get him but if you don't you can switch that slot for Black Widow or Cosmo just to have some interaction. Armor is also a good tech option here since Shang Chi is featured in almost every deck so Armor does help protecting Ronan/Dino. Zola is also a great option since you can cheat out many wins since not many people expect Zola unto Ronan/Dino.