传令号角 (Herald's Horn) (zhs)
Artifact
(CMC 3)
As Herald's Horn enters the battlefield, choose a creature type.
Creature spells you cast of the chosen type cost 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.
- [CLB] Commander Legends: Battle for Baldur's Gate #862 (U)