Cavern-Navigator Squerri

When Cavern-Navigator Squerri enters the
battlefield, you may look at the top three cards
of your deck and place a card with Bury in your
hand.
{4}{b}{b}: As you play this card, you may pay this
cost. If you do, this card gains Bury 2 .
(When this card enters the battlefield, place two
Acorn Counters on a land you control.That land
can't tap next turn. The next two times you tap
that land, draw a card.)