Yes, there is a grind to this game. However, there is also plenty of depth to the game, especially for the given amount of levels.
I am fairly new, but I will share some of my experiences, opinions and insights. At first, I loved trying out new decks and playing them against the AI3. I started with a mono life deck and then tried various other mono decks. I also farmed AI5 (and T50 i think ???) with Essence's mono Aether Deck.
Then I started to build SG's rainbow for FG's. I had terrible luck and quickly became frustrated. Plus, I didn't understand the significance of the sundial nerf at the time. Its a great deck, but outdated. I got frustrated over this. In fact, my first post on this forum was a suggestion that pillar upgrades should cost a 1k. I was upset since I spent so much and didn't see a return. However, some people still have great success with that deck.
Nonetheless, it is a great deck. It taught me the depth of rainbow decks. Then I started farming AI3, T50, and AI5 with my own rainbows.
When I was sick of farming, I built this deck and followed its guide to the tee....well almost.
http://elementscommunity.org/forum/index.php/topic,6546.0.htmlIt is a very efficient FG farmer. Now, I have more than 120 upgraded cards. However, I am getting bored of farming the same FG's with the same strategy. I might start experimenting with my own rush's and rainbows.
I have also neglected PvP to the large part, which I might start getting into. So, I still have plenty to explore.
Yes, this is a farming game. It is frustrating at times. It is also an in-depth game with much to explore.