Batman, the Dark Knight

When Batman, the Dark Knight enters the battlefield, search your deck for an artifact card.
Apply it to Batman, the Dark Knight.
{x}{w} Search your deck for X hero cards.
{2}{u} Scry 1 and draw a card.
{3}{b}{t} Destroy target creature with power 4 or greater.
{x}{r}{r} Fight X number of villains.
{g}{g}{g}{t} Add {c}{c}{c}{c}.