Unlike standard cards, holographic cards contain reflective surfaces that create visual effects when viewed from different angles
Players regularly use these both in battles, as once they have been picked up from the deck, they can have a direct impact on a player's best cards
There was once a time when you'd see it pop up in Vintage Mishra's Workshop decks, though it's dropped off there, and is no longer a staple in Commander
Notable "F" cards include all VSTAR Pokemon like Regidrago and Lugia, all Radiant Pokemon like Greninja and Charizard, the Lost Zone engine, Pok Stop, Archeops, Roxanne, Trekking Shoes, Switch Cart, Hisuian Heavy Ball, and Kirlia
I'm very strongly against counterfeit cards