I completed the game after prestiging twice, and I had a lot of fun doing it! My only feedback is that it doesn't really feel like a deck "builder", more like a deck "modifier". By far, the most control I had over the deck was in runes and upgrades. I would have like to have more control over the cards themselves. Specifically removing less useful cards, and being able to buy duplicates of the cards that worked with my strategy. As it was, it just felt like I was playing with the same deck over and over again.