If you are familiar with Axie Infinity v2 (Classic), there are many similarities in v3 (Origins). Axie Origins is also a 3v3 card battling game.
You can use themed decks such as Poison, AOE, or stall just like in v2.
Another similarity is how you position your Axies: Tank in the front, Carry in the back and Utility in the middle.
Just like in v2, deck building and team synergy are really important to succeeding in ranked battles. You will need to keep track of your opponents cards, as well as your own, to know what has happened and what to expect next.