While there are sites out there like Detecting the Fakes that share a whole swath of tests you can use, Cardsphere admins are going to be most interested in seeing the results of the "Squiggly T" and "Green Dot" test
Illustrated by Karl Kopinski Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
Illustrated by Michael Phillippi Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
The Stifle ability wont be super impressive, but you can occasionally stop a combo or something
And, of course, Wizards of the Coast has something for At the press preview, Jeremy Jarvis, senior creative director at Wizards, and Sarra Scherb, copywriter at Wizards, discussed the cards and a special opportunity Scherb had with the movie cast