Barrowin of Clan Undurr
Legendary Creature — Dwarf Cleric, {2}{W}{B}
Oracle Text
When Barrowin enters, venture into the dungeon. (Enter the first room or advance to the next room.)
Whenever Barrowin attacks, return up to one creature card with mana value 3 or less from your graveyard to the battlefield if you've completed a dungeon.