The "number-for-number" construction is used in Magic to indicate that you are spending some number of cards to obtain another number of cards-worth of value
Now, because you could immediately pay a seven-fold of life for an equal amount of cards without anything else, Griselbrand was immediately impactful, and has been ban-hammered in Commander
How MTG's Terra Commander Decks Work Much like Kefka, Terra, Magical Adept's main strategy is to self-mill cards from the deck to fill the graveyard
Sadly this doesnt work against mass land destruction, as when it resolves it doesnt matter if your fetches stay in play or not
While Ive seen games where the caster of this enchantment has piles of treasure they helplessly look at, on the whole, this card will fuel the end of games if given the chance, and is one of the few white mana generators I would recommend for decks running green it is just capable of doing that level of heavy lifting