Goblin Researcher

When Goblin Researcher enters, exile the top card of your library. During any turn you attacked with Goblin Researcher, you may play that card.

Krenko, Mob Boss

{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

When Volley Veteran enters, it deals damage to target creature an opponent controls equal to the number of Goblins you control.

Flying
Battle Squadron's power and toughness are each equal to the number of creatures you control.

{1}{R}: Weaselback Redcap gets +2/+0 until end of turn.

When Subterranean Scout enters, target creature with power 2 or less can't be blocked this turn.

Creatures you control get +2/+0 until end of turn.

Create three 1/1 red Goblin creature tokens.

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Create two 1/1 red Goblin creature tokens.

Thriving Bluff enters tapped. As it enters, choose a color other than red.
{T}: Add {R} or one mana of the chosen color.