I caved and purchased the Adventure Time Card Wars game for $4.95. Despite it being a paid game there are still in game purchases such as heart energy and premium games. However the quality of the content is worth the more than 99cent price tag.
It plays a bit differently than physical card version. Attacks have a spinning wheel that are a little bit up to chance and effects that increase or decrease attack and defense stack.
There are a ton of cards in the game that can be earned in battle or discovered through treasure chests. Buying premium gems will give you rare cards, but you can get them with in game money as well so there isn’t a need to spend more than the original $4.95.
There are hundreds of levels and also a function to battle other random people. This is my favourite iPhone card game yet.