The idea was to color the frame of an Unlimited card black with a sharpie, thus giving it a black frame
Bear in mind though, you didn't really specify a budget, so I'm just going to aim for under $20 per card: Extraplanar Lens (way past 20, oops) Gauntlet of Power (i think this is 20 on the dot) I have to run for now, I'll add voltron-esque cards in another comment later.
Available in-store for Costco members and online for non-members in the US and UK while supplies last
If all that fails, I'll have two other backup plans
Mobile optimization is another key sign of quality, ensuring consistent performance whether playing on a tablet during a commute or on a desktop at home
Ripping on into this drop as a Bonus card, Elesh Norn returns with a reprint of her popular Grand Cenobite card