Creature - Goblin 1/1, 2R (3) When Goblin Matron comes into play, you may search your library for a Goblin card, reveal that card, and put it into your hand. If you do, shuffle your library.1
Illus. Daniel Gelon
You can search for any "Creature - Goblin" card into play. Older cards of type "Summon Goblin" and "Summon Goblins" also count. You cannot search for cards that have Goblin in the name but are not of creature type Goblin. [D'Angelo 1999/05/01]
You do not have to find a Goblin card if you do not want to. See Rule G19.4. [D'Angelo 2001/07/14]