Saheeli's Directive [Commander 2018]

Set: Commander 2018 Type: Sorcery Rarity: Rare Cost: {X}{R}{R}{R} Improvise (Each artifact you tap after you're done activating mana abilities pays for {1}.)Reveal the top X cards of your library. You may put any number of artifact cards with converted mana cost X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.