what does graded mean on pokemon cards card condition guide: NM, LP, MP, HP & damaged explained Pokémon TCG: Pros & Cons

They are not a liquid asset that you can reliably sell at will

Merrow Reejerey won't help you tap or untap stuff because it wasn't cast

Creeping Tarpit (the best of those) is surprisingly close too

Seeing as this card is legal in all formats where it could appear, the demand for it is quite high especially as a one-of in CEDH decks that can thoroughly abuse it in concert with token-producing cards, untapping-land shenanigans, and much more

Vehicles : Vehicles are artifacts that can turn into creatures if you tap creatures with enough power to "crew" them, turning the vehicle into a creature that turn

Use Magmar to make the most of the Blaine Trainer Card, or even Fossil Cards to keep your main mons safe while you set up