Ranshi, Cardslinging Wizard

When Ranshi, Cardslinging Wizard enters the battlefield, search your library for a custom card
made on MTGCardsmith, reveal it, shuffle your library, then choose one —
•Cast it if it is an instant or sorcery with
converted mana cost 3 or less.
•Put it into your hand.
•Exile it and the top ten cards of your library.
Draw two cards.