A gameplay loop involves the order of actions in your game and dictates how your game is played
This means that the promo cards don't really have any special effects in battle
Phyrexian Revoker is just a solid bread and butter card for any good cards style Cube, and it gains points for being an artifact in some other environments
Urza, Lord High Artificer Last up is Urza, Lord High Artificer, and if you happen to have the foil etched timeshifted version from Modern Horizons, youve got to build a deck around it to show it off
Its literally a hundred times more expensive in foil than in nonfoil, because parents are suckers in all sorts of ways
Card sleeves not only prevent wear and scratches, but also add personality and style to your cards