"Typically" is used due to a change in card distribution in Time Spiral which allows premium cards of any rarity to replace Common cards instead of cards of their own rarity
Then I realized that its any three lands, which sets you up for a classic mana-producing pair like Cabal Coffers and Urborg, Tomb of Yawgmoth
There are few cards as universally efficient and useful as Vindicate
Heres the magic trick with Mishr, we use cards that counter our own artifacts, like Blood Funnel
Got a cozy campsite card we missed
I can almost see the design team sitting around a table when someone proclaims, Why dont we just make a card that lets players search their deck for any card they want. Laughs abound, then slowly the idea grows and grow until it is finally adopted, though with a major stipulation: you must discard 2 cards in order to use it