Abrade was very popular in Pauper for a while, before Cast Into the Fire stole its place
These will be your Character, Event, and Stage cards to be used over the course of the game
Instead of renaming them or giving them a special type, the Shiny Pokemon in Hidden Fates were simply reprints of recent Pokemon cards, only with each Pokemons shiny coloring and a special silver foil background
From a law perspective, yes, custom Magic cards are legal for personal use only
Not only have cards like The One Ring and Orcish Bowmasters completely changed various MTG metagames, but The one of one Serialized Ring turned Magic into a sensation, producing the most expensive MTG card ever, selling for over two million dollars to Post Malone