Biggs, the Inventor

: Sacrifice a goblin: Search your library for an artifact card and put it into your hand, then shuffle your library.
+2: Create a 1/1 red Goblin creature token. When it dies this turn, it deals 1 damage to any target.
-7: Sacrifice up to four artifacts. Biggs, the Inventor deals damage to any target equal to their total converted mana cost.