That's pretty saucy from where I am standing, as free dork abuse in the Command Zone can be broken as we know, but here you need to spend six mana, tap it and wait a turn, and then you just don't know what you'll get, if anything, hence it making my second list back here in the Honorable Mentions, but worth it all up and down, and make that choo choo sound
Discard all the cards in your hand, then draw that many cards
1996 Pokmon Japanese Base Set Holo Charizard No Rarity, Arita Signed (PSA 10) $324,000 (tie) This ultra-early No Rarity Charizard was signed by original illustrator Mitsuhiro Arita, making it both historic and unique
Ramp Spells Uril is a big boy that needs to enter the battlefield sooner rather than later, so you run a fair amount of ramp spells to get the feat done
(And if youre an idiot like me, who doesnt read the piece of paper with READ THIS FIRST before thinking you know better and shuffling the cards, theyre also numbered so you can put them back in the correct order.) Once youve played that through once, you can go ahead and shuffle as much as you want, and then play the game proper