Saheeli's Directive - Commander 2018 - 26

Sorcery

Mana 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 mana value 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.

Rare · Commander 2018 · #26 (C18)

Illustrated by Craig J Spearing