how much is one pokemon booster pack Card Packs and special Energy cards to elevate your gameplay experience Pokemon TCG: Perfect Order -

So why mono black

The key difference between the two decks was that Shimadas included the Jolteon package used to shut off the Abilities of Water-Pokmon, which unfortunately were seven dead cards in this matchup

I am highly speculating that wotc is introducing her this way to magic players, to get their feet wet for when she inevitably does some special showcase cards next year when magic has their first ever Marvel card set (magic cards but with licensed marvel characters - based on the comics not the movies)

Flavour-wise, in early expansions they revolve around demons, the undead, villainous assassins and necromancers