Roxis, Steam Knight

When Roxis, Steam Knight enters the battlefield, search your library for an equipment card with converted mana cost X or less, and put it onto the battlefield attached to Roxis, Steam Knight, where X is half the amount of mana spent to cast Roxis, Steam Knight, rounded up.
Equipment spells cost {1} less to cast.
"In all my days, I've never seen a more talented smith or finer warrior."