Its not the baddest beater in the world, but it will demand at least 7 life from opponents to remove, and is a boon to keyword soup decks (which usually feature Odric, Lunarch Marshal or Bloodric)
While its Modern hype has dropped off since Glimpse of Tomorrow decks were in vogue, It sees play as a staple in a lot of cEDH decks, where making a Lotus Petal twice for a fetchland is a big tempo play
For true duals, Tundra and Volcanic Island give you smooth untapped mana early, while Hallowed Fountain and Steam Vents are the backup shock lands when you need extra flexibility
No need to bring any old cliches back from the dead
There are many scenarios where a creature enchanted by Pretenders Claim will either A) be blocked and have the tapping lands ability not matter, B) just be outright killed, or C) connect because the opponent wasnt going to block anyhow
On average, then, one in five packs will have a rare or mythic worth $10 or more