Unyielding Elves

When Unyielding Elvesenters the battlefield,
search your library for a forest card, reveal it, and
put it into your hand. Then shuffle your library.
When Unyielding Elves dies, you may put a
land card from your hand into play.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)