Well, back when it was first produced in 1997, the only way to obtain one was by participating in either CoroCoro or Manga Magazines Pokmon card drawing contests
Terrarion does keep up with the others in usefulness as it is able to double fix and is a great tool when you have things like Baleful Strix, Thopter Foundry and Tempered Steel to play
You could use X Speed to keep Raichu off the bench when it isnt fully loaded up, allowing you to swap in a Pokemon to soak some damage and then swap them back and hit hard again
Choose a material that aligns with your values and maintenance preferences
One method that is surprisingly consistent is by poisoning your opponent until they lose the game
If you truly derive joy from depriving your opponents from joy, consider the following Humans: Drannith Magistrate and Thalia, Heretic Cathar