Very large scratches, scuffs, befouls, folds, dents, tears, peeling, water damage, etc
Even if some or all of those creatures are no longer attacking or no longer have power 4 or greater when the ability resolves, they still count towards how many lands you can search for
Like most of these cards, at the time they were released they werent actually that game breaking
Ugin's Labyrinth protects your big Eldrazi or even an Arcane Proxy from Grief and then lets you get it back
Premium card stocks can enhance color depth, reduce visible wear during repeated use, and give your finished cards a more substantial, professionally produced feel
Competitive players need to know if an infinite combo is coming and the best way to defeat it, but as for infinite combos in casual formats, most players accept that an infinite combo can end the game