Herald of the Grandmaster

When this creature enters the battlefield, search
your library for a creature named Herald of the
Grandmaster and put it into your hand, then
shuffle your library. If you control three or more
creatures named Herald of the Grandmaster, you
may instead search your library for a Planeswalker
card and put it into your hand, then shuffle your
library.
A deck may have up to six cards named Herald of
the Grandmaster