An unusual feel is a reason to compare a Magic card more carefully, not proof of a counterfeit. Avoid “snap tests,” bending, rubbing, or scraping the surface to create an answer.
Genuine cards do not all feel identical
Wizards' Playing Card Board describes both stock construction and surface coatings, including an additional genuine multi-ply stock. Finish and condition therefore matter when choosing a reference.
Do not infer a fake's chemical composition from a waxy feel, or assume every genuine card has exactly the same corner shape. First check the edition, treatment, and whether the comparison card is relevant.
Inspect edges without stressing them
Place the card on a clean surface under good light and inspect the existing edge with magnification. Look for joins, unusual layering, or apparent trimming, then compare with an appropriate genuine copy.
An exposed core color alone does not settle authenticity. Do not peel a corner to make layers easier to see. A reback may include genuine printed parts, so its construction and represented edition require attention.
Corner differences can prompt investigation, but are not a universal counterfeit rule. Do not rub corners or press two card faces together as a comparison technique.
Handle as little as necessary
Ask permission before taking a seller's card out of its sleeve. Keep hands clean and dry and avoid rubbing the printed face. Notice an unexpected finish during ordinary careful handling, then move to visual comparisons rather than repeatedly touching it.
Texture can contribute to an examination: CGC noted it alongside other findings in a counterfeit Black Lotus case. That observation does not establish how most fakes feel.
Follow up, even if the feel seems normal
Use a loupe comparison of both faces and, where suitable, a light comparison. Neither confirms everything on its own, and a familiar feel is not a reason to skip them.
For a significant purchase, request photos of the actual card and clarify inspection and return arrangements. If important differences remain unexplained, preserve the card and ask for an experienced in-person assessment. No price threshold makes touch, light, or grading automatically infallible.