Bit iffy on the tribute mechanic. Sorta understand it from the comments here, but do the stats and level of the cards influence the outcome? Like does sacrificing a strong card to a weak or strong one give it better boosts (if it works) than a weak card to a strong or weak card?
Also, does evolving pokemon before levelling them up provide better stats in the long run? Example: does levelling a charizard from 1 to 5 provide better stats at level 5 than a charmander levelled to 5 and then evolved to charizard?
Lastly, do you plan to create a discord for this game? Could be very beneficial for everyone having that available.