I just played for the first time from start until what's available and LOVED it!

For Dollet and Timber, I felt the rarity for some of the cards was a bit low. I'm not sure if this was done to kind of pad out the gameplay a little since the game is still in development, but the rarity was so low that I thought I might have encountered a bug that wasn't allowing me to get the remaining cards needed for each area. There also wasn't NPC text or anything that basically said cards can be rare, so keep battling or something to that effect to encourage me to keep battling to eventually find the rarer cards.