I write few reviews, but this game has earned one. Having played many others (Magic, Hearthstone, Legendary, etc.), this game blows all the others away. The graphics, colors, animations, sound, gameplay, intuitive UI, lack of in-your-face ingame marketing- - all wonderfully done.
I play hours each day and wish I had time for more. This is a game that an old miser like me gratefully spent some cash ($13 so far) on just out of sheer appreciation! It is NOT ptw... the purchases are for premium graphical things, primarily. All the cards can be earned for free , and the game is very generous in this regard.
Unlike so many other games, this is not a clone, but is a next generation blend of the best ideas in game play. Innovation, Beauty, Elegance, Depth of Play... Eternal has it all. Thanks and Supreme Kudos to the Developers for this one. You nailed it!