Recs.
Updated
SpecsUpdate
Pros
Pro Easy to learn - hard to master
This is #1 requirement for successful competitive game and Faeria did this part very well. PvE content will help you understand how the game works and then it will be up to you have far you can get. You'll often have to think forward while facing multiple good options during your turn and RNG will not win you any games.
Pro Very good balance
Of course, there are cards that are bad no matter how used, but most of them are in very good spot right now. There are cards that can be used in almost every deck, and there are cards that can be used only in specialized decks, but that doesn't mean that these cards are bad. Also, Legendary cards are not better than cards of lower rarity. Same goes for epic and rare. Legendary cards are often simply unique in what they do.
Cons
Con Starting hand size is very small
Games can sometimes be decided almost entirely by starting hand where you only get 3 cards as games can be over very quickly and you will see very few cards.