Light Ditto 70 HP PKMN Power Life Transformation- You may choose one pokemon on the opponents field and you become that pokemon. Ditto gain ten life every turn. Retreat cost (C)' Weakness N/A
One thing you'll notice is that most people like to make their cards as real as possible. This makes them seem more real, and therefore more interesting. While you can make fantasy cards that are way off in left field, they won't be as well recieved as more realistic cards because they don't fit into the game.