In order to play a card or an ability, you must sacrifice a land that produces at least one colored mana of the card you're playing
Tier 1 Tier 1.5 Tier 2 Check out our full list of the cards in the Archazias Island set, our picks for the best cards in Archazias Island and our list of the most wanted cards in the set from a collectors (rather than a players) perspective
On the other hand, for products like Secret Lair drops, Commander decks, or other preconstructed / box-set supplemental products, we used the cost of buying the sealed product (which is generally lower than the cost of buying all of the cards in the product individually) from around the time the set was released (for sealed product, you'll often pay much more if you wait until the set goes out of print to try to buy it)
These starter decks are fantastic value, because you get given copies of all 20 cards within them, and they're quite good to use as they are or with a few tweaks
Who knows if you're not a Final Fantasy player, you may even enjoy the set's flavor so much you want to check it out