Trash a card from your hand. Choose a different thing per 1 Coin it costs: +1 Card; +1 Action; +1 Buy; +1 Coin; gain a Silver; gain a Horse.
Scrap is an Action card from Menagerie(Set:Menagerie (expansion)). It is a trash for benefit card that gives up to 6 different bonuses depending on the cost of the trashed card. It is one of several ways to gain Horses(Horse).