Empty the Warrens

Create two 1/1 red Goblin creature tokens.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Gaea's Cradle

{T}: Add {G} for each creature you control.

Dragon Fodder

Create two 1/1 red Goblin creature tokens.

Intangible Virtue

Creature tokens you control get +1/+1 and have vigilance.

Goblin Offensive

Phantom General

Doubling Season

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.
If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

Goblin Warrens

{2}{R}, Sacrifice two Goblins: Create three 1/1 red Goblin creature tokens.