In a booster box of Revised look for Lightning Bolts, Swords to Plowshares, and Counterspells as old prints of current staples in certain formats
Kefnet the Mindful Kefnet the Mindful is a three-cost (two generic and one blue) legendary creature with Flying and Indestructible
J25 #621 J22 #627 STA #49 #142 DOM #153 Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pauper, Pioneer, Timeless, Vintage Alchemy, Standard
Along with that, it makes each nonland permanent you control every colour and allows all of your lands to be every basic land type - which is a huge boon for a lot of five-colour decks
People have a lot more dignity when youre sitting face-to-face and dont use the same old cards just to get a high rank