I enjoy that game too but the F2P trappings are cruel. It also has a lot of presence already.
TBH I'm playing almost daily Clash Royale since day 1 and I never spent a cent, and I'm still enjoying it a lot.
The matchmaking is what makes it awesome imho...you are almost always guaranteed a chance of victory in every match...and if you are put for some reason against stronger opponents (stronger=much better deck than yours) next games you are guaranteed to fight against weaker ones, so it balances out.
Maybe it'd just because I was there day one and my deck grew with the game, not sure what's in store for someone who starts playing it today tough.
And this is probably valid for every CCG; thank you very much for your recap on the state of art CCGs out there.
I take the chance to add one you forgot tough...actually...THE one, where the genre started.
Magic Duels.
DISCLAIMER: I played Magic LONG ago, over 20 years ago actually (I still have my original mint deck, valued apparently over 200 euros just for historic reasons), when the only ones who played Magic were nerds in basements while the cool guys went to college parties.
Then things became too expensive and big so I dropped it.
With the iPad I returned to card games...and of course Magic was the first I got.
The first apps where terribad, expensive and TOO MANY CARDS I couldn't even START to make a deck...too choices and too much money involved.
So I dropped it again, tried other games...fell in love with deck building games (Ascension and all) that don't have the CCGs money pit problem.
Of course I played Hearthstone a lot but then things became too competitive there too, too many cards, I didn't have fun anymore.
So.......last month I downloaded the new Magic app to teach my son how to play Magic.
Not only the app is very well done, it's universal and you can actually play on iPhone....what really blew me away was the sheer free single player content.
You can play for months without even having to build a deck (more on this later).
I highly recommend it (especially on iPad), the game is imho still the absolute king.
It's WAY less accessible at first than, let's say, Hearthstone, but strategy wise is incredibile deeper.
The single player campaigns are awesome not only to teach you the basic game, but then all the nuances and tricks, the various type of decks, introducing things slowly but constantly.
All are fixed decks, so you don't have to climb that wall if you don't want to.
Also, the app is really generous in giving you money to spend on boosters (I guess they know it's only to lure people to the real life game).
Then you can build your deck and play against 3 different AI and online.
The deck builder is one of the best I ever seen...it's a perfect starting point with a ton of archetypes and different fighting styles.
I'm immensely enjoying the game on digital, I really recommend it and I felt silly to neglect it when it was out, due to the very bad previous digital incarnations.
It's free of course, and the single player campaigns (there are 7) will keep you busy for a long while....after that you can really say you know Magic the Gathering.
Bonus...the art in the game is still unparalleled imho.
UI is a bit low res but the cards are absolutely fantastic.