This would later be addressed, at least in temporary fashion, in Pokmon X/Y where Charizard gained the ability to Mega Evolve into the mighty Mega Charizard X, a Fire and Dragon-type with black scales and blue flame
Not background necessarily, but some other line of text that says something along the lines of Whenever you sacrifice a Treasure token, give a creature a +1/+1 counter and trample until end of turn. That would make it a lot more interesting and powerful, but I suppose not every card needs to be great
This prebuilt, single-player deck welcomes new and seasoned players to the story with plenty of iconic Disney Princesses
If Clever Impersonator enters the battlefield as a copy of a planeswalker, it will enter the battlefield with a number of loyalty counters on it equal to the loyalty printed in the lower right corner of the planeswalker card
Athreos's ability allows a player to return creatures to their hand when they die, rather than put them into their graveyard, unless their opponent pays 3 life