Shared Discovery

As an additional cost to cast this spell, tap four untapped creatures you control.
Draw three cards.

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Counter target spell unless its controller pays {3}.

As an additional cost to cast this spell, sacrifice an artifact.
Create three 1/1 red Goblin creature tokens.

Slagwoods Bridge enters tapped.
Indestructible
{T}: Add {R} or {G}.

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

Create a number of 1/1 red Goblin creature tokens equal to two plus the number of cards named Goblin Gathering in your graveyard.

Enchant land
As long as enchanted land is a basic Mountain, Goblin creatures get +0/+2.

Silverbluff Bridge enters tapped.
Indestructible
{T}: Add {U} or {R}.

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

{1}, {T}, Sacrifice Chromatic Star: Add one mana of any color.
When Chromatic Star is put into a graveyard from the battlefield, draw a card.

Create two 1/1 red Goblin creature tokens.

Create three 1/1 red Goblin creature tokens.

Each spell you cast that's red or green costs {1} less to cast.

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

Goblin War Strike deals damage to target player or planeswalker equal to the number of Goblins you control.