It's the chance you "mana flood," which Frank describes as "having drawn 8 lands by turn seven when you're on the draw." By turn seven you've seen 15 cards, so this is the chance more than half of the cards you've seen are lands
I personally use art from existing Magic cards sourced from mtgpics.com, which has a host of awesome, high-quality Magic art
His role as a guide isn't really represented here

PLAY THE VIDEO GAMEThis special Game Edition kit includes the FINAL FANTASY VII Limit Break Commander Deck, a PC download code for the original FINAL FANTASY VII video game, and an exclusive Traditional Foil promo card FINAL FANTASY VII-THEMED DECKBattle your friends with FINAL FANTASY VIIs iconic heroes, villains, and spells with the strategic gameplay of the Magic: The Gathering collectible card game LETS MOSEYGet into gear with Cloud, Ex-SOLDIER and fight for the planets future as you equip weapons and raise your creature stats to 7 power or higher to break past your limit 25 NEW CARDS + ALL NEW ARTAll 100 cards in this ready-to-play deck feature new FINAL FANTASY-themed art, including 25 Commander cards entirely new to Magic: The Gathering 2 FOIL LEGENDARY CARDSEach deck includes 2 Legendary Creature cards with a shiny Traditional Foil treatment that can be played as your commander Play Boosters Final Fantasy play boosters are the main quest, your draftable play booster packs with up to a full squad of four rares

An artifact that costs no mana, you can tap it and sacrifice it to look at the top of target player's library, then draw a card at the start of the next upkeep