Zubat Familiar

Flying
Echo {2}{u} (At the beginning of your upkeep, if this
came under your control since the beginning of your
last upkeep, sacrifice it unless you pay its echo cost.)
When Zubat Familiar enters the battlefield, look
at the top three cards of your library. Put one of
them into your hand and the rest on the bottom
of your library.
Pokedex Entry: Forms colonies in perpetually
dark places.