As an additional cost to cast Harrow, sacrifice a land.
Search your library for up to two basic land cards and put them onto the battlefield. Then shuffle your library.
NM-Mint - $5.70
NM-Mint Non English - $5.70
Lightly Played - $5.40
Lightly Played Non English - $5.40
Moderately Played - $5.10
Moderately Played Non English - $5.10
Heavily Played - $4.50
Heavily Played Non English - $4.50
Damaged - $3.70
Damaged Non English - $3.70