Last 2 or 3 weeks card prices are going up continuously which is a good sign and it's great for steemmonsters cards holders. So if you look at the steemmonsters marketcap you can see that market went up 30% though some card prices stayed the same which are not frequently used cards and people don't want to use them at battles. For example price of the Stone Golem and Rexxie stayed the same while other cards went up 2-3x in two-three weeks. Best performer is still the legendary summoner Prince Rennyn and if you want to get get this card without paying 30 usd then you can try your luck with buying booster packs on the market.