At a cost of seven Ink, it isnt cheap to play, but if you have a character that costs seven or more on the field, you can tap it to play Be Prepared without paying its Ink cost
Take a new foil method, give it to one of Magics most popular characters, and put it on one of her better cards, and the result is a piece worth over $200
Esper Sentinel (Modern Horizons II) Weve all played against Rhystic Study or Mystic Remora and seen them run away with games by drawing a bunch of cards - Esper Sentinel is whites answer to these cards
Commander Legends had a gimmick where in one slot, your Collector Boosters had only a 30% chance to contain a Foil Extended Art card
GrimDeck's free tier covers deck building, mana curve analysis, and collection tracking for up to 10,000 cards
Since this thing saw print I have seen a lot of games end where people felt very safe and die to 10 direct damage from four mana with this and Fireblast