Goblin Genius

Exile a goblin or an artifact from your graveyard to create a 1/1 goblin artifact creature token.
Sacrifice 5 goblin artifacts and this card to summon Gobtron, a 6/6 Goblin legendary creature token with these effects(activate this only once per turn)
•Sacrifice a goblin or an artifact to deal 1 damage to any target
•Sacrifice this creature to summon 5 1/1 goblin artifact creature tokens and a Goblin Genius from your graveyard
(activate only as a sorcery)