Whenever equipped creature attacks, defending player reveals cards from the top of their library until they reveal a land card. The creature gets +1/+0 until end of turn for each card revealed this way. That player puts the revealed cards into their graveyard.
Equip {2}
If the equipped creature is attacking a planeswalker, the controller of the planeswalker is the defending player.
The land card is counted when calculating the bonus, and it will be put into the graveyard with the other revealed cards.