Then if your foe surveils, scries or searches their library you pump River by +1/+1 with a counter and then shoot that player for your power in damage
+ - Create a token that's a copy of target artifact or creature you control
Desert Desert is, well, the namesake card
YouTube Logan Paul, who arguably spearheaded the fad of paying enormous sums for unopened first edition booster pack boxes, reportedly traded his Mint 9 version of Pikachu Illustrator for a flawless Gem Mint 10 copy, along with $4 million to balance the scales
Both are worth playing in decks that support them as ways to cheat high mana costs on exceptional threats like Bolas's Citadel and Atraxa, Grand Unifier
The +2 is not that great since life gain usually delays the inevitable defeat unless there are strong triggers for the life gain, yet a +2 is way, way better than a +1