Ginko, Wandering Mushishi

At the beginning of your upkeep, look at the top
card of your library. If it is a creature card with
mana cost 2 or less, you may put that card onto
the battlefield under your control.
Neither good nor evil, they are life in its purest
form. Vulgar and strange, they have inspired fear in
humans since the dawn of time and have, over the
ages, come to be known as "mushi".