As you probably have guessed, it's not a shift in the meta that's caused Booster Tutor to spike: the card isn't legal in any sanctioned MTG formats, after all
Read: MTGs Final Fantasy Commander Decks revealed While the cards are ultra-powerful on their own, and I can see both being staples of meaner games of Magic , whats most appealing is the artwork
7-118CNinja The cost paid to play this card refers to the cost paid to move this card from your hand onto the field
Unlike other sources of ramp, like creatures or artifacts that tap for mana, lands are very difficult to remove from the battlefield, and unlike temporary ramp, like Dark Ritual, extra lands continue to provide an advantage turn after turn
So Common cards and Uncommon contain more vanilla cards (with no rules text) or cards with just one keyword, up to 5 or 6 ink cost at max
Keep that total high, and if you have 40 or more at the beginning of your upkeep you win the game