Dexter Jettster, the Guy

You may look at the top card of your library anytime.
{u}{g}:Make a food token.
{1}{u}{g}: Draw a card
{2}{u}{g}{t}: Look at the top card of your library, reveal it if it is a card type you don’t not have on the battlefield already, put it in your hand. Otherwise, put that card back on the top or bottom of your library.
He’s the guy.