Basically, they would start by looking for a reprint, but if they didn't find something they were happy with, they could design a new card
For example, Morcant's Eyes is an Elf (although not a creature) while on the battlefield and an Elf card (although not a creature card) in zones other than the battlefield
The artwork of Charizard is still recognizable, but its so damaged that it appears to have been covered with warped plastic
Popular additions include Rayquaza Poncho Pikachu and Mega Charizard X and Y Poncho Pikachu
It also makes Clues when our nontoken creatures die
While the future may hold many peaks and valleys for this card, it's unlikely it can maintain such a high value in the short term, so be careful when purchasing