most valuable non holographic pokemon cards black star non-holo rare Black Star Promo Holo/Non holo cards-various cards available rare pokemon cards value Non

You can use this to imprint two copies of Slime Against Humanity, netting twice as many Oozes per cast, or you can imprint another sorcery for value

(It can't be the target of spells or abilities.) Creature - Mutant Frog Silverback Elder Whenever you cast a creature spell, choose one Destroy target artifact or enchantment

Link to Black Cards

Drift of Phantasms Drift of Phantasms has a key role in defender decks and others that are interested in tutoring 3-mana cards

On Kamigawa: Neon Dynasty double-faced cards, the back-face symbol is an open fan

So yeah, those were the three different types of unofficial cards that you might encounter, each with varying degrees of legality