If you read my New Years gaming resolutions, you know I plan to spend more time talking about Magic throughout the year
After you get your extra card, you want to consider some Trap options to help keep the first monster you Summon on the field so that you can follow up with another Normal Summon to draw 2 more cards
It being released at the height of the game's popularity and a highly desirable ex card means that there are probably a lot of copies in existence, although just how many of those belong to accounts that are still active is anybody's guess
Other good trainers include AZs Tranquility (switches and heals your Pokmon ex), Roxys Performance (traps your opponents poisoned Pokmon), Phillipe (accelerates Metal energy from the discard) and Great Haul Net (recovers Water Pokmon and Basic Energy from the discard)
In fact, the more I think about it, the more I consider Monastery Mentor to be a Deathmist Raptor / Lotus Cobra level mistake
And seeing them get damaged or deteriorate can be heartbreaking