As Herald's Horn enters the battlefield, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.
NM-Mint - $4.20
Lightly Played - $3.80
Moderately Played - $3.40
Heavily Played - $3.00
Damaged - $2.10
NM-Mint Non English - $4.20
Lightly Played Non English - $3.80
Moderately Played Non English - $3.40
Heavily Played Non English - $3.00
Damaged Non English - $2.10