mtg blue search your library for a card One Mana then shuffle your library Rules Text: search, target, player's,

In many games, there are 52 cards plus two jokers, for a total of 54 cards

Karn, the Great Creator The Batman of MTG planeswalker cards, Karn, the Great Creator has an unlimited utility belt filled with everything you could possibly need, as long as it's an artifact

I mean, he's not good , but he's a 5/5 that costs four mana to summon

There was Accelerated Blue and the German Dragon in Standard, Suicide Brown and Iron Giant in Extended, good old Yawgmoth's Bargain in just about everything that allowed it, and then a lot of descendants of those initial Tinker decks that continued to get refined and grow in power until they took over Extended in New Orleans