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 - $4.60
NM-Mint Non English - $4.60
Lightly Played - $4.40
Lightly Played Non English - $4.40
Moderately Played - $4.10
Moderately Played Non English - $4.10
Heavily Played - $3.70
Heavily Played Non English - $3.70
Damaged - $3.00
Damaged Non English - $3.00