Goblin Matron

When Goblin Matron enters, you may search your library for a Goblin card, reveal that card, put it into your hand, then shuffle.

Goblin Tinkerer

{R}, {T}: Destroy target artifact. That artifact deals damage equal to its mana value to Goblin Tinkerer.

Lightning Bolt deals 3 damage to any target.

Whenever another red creature you control enters, Foundry Street Denizen gets +1/+0 until end of turn.