The wiki I used for the game, arcadedlc, has been down for some time now. This complicates things because since there's no guide in-game explaining how you achieve some evolutions (which should at least show the ones you did before in my opinion), then I have no way of remembering how I got a certain Digimon I want. Also, in my humble opinion, the evolution unlocker item should be cheaper since it has failure rate.