As the number of cards you can use during a turn is only limited by the amount of mana you have in your pool (compared to the summoning limits of a game like Yu-Gi-Oh!), Black Lotus could allow a player, especially one playing an aggressive Red mana deck, the opportunity to destroy their opponent with zero ability to be countered
Modern fake cards can look very real, so visual inspection alone is risky
Court of Grace at least replaces itself on our end step and provides either an Angel or Spirit on our upkeep
Amber cards in Rise of the Floodborn, the latest set for trading card game Disney Lorcana, are ideal for players who enjoy synergy
Played competitively in Pioneer, and en masse in Commander, its not rare to see this card on the battlefield
Mark Hernandez famously finished second in the previous years World Championship, with just a single copy of Sleight of Mind in his sideboard (and just two Adarkar Wastes to cast it)