Goblin King

Other Goblins get +1/+1 and have mountainwalk.

Mountain

{T}, Sacrifice Goblin Digging Team: Destroy target Wall.

{3}: Patagia Golem gains flying until end of turn.

Spitting Earth deals damage to target creature equal to the number of Mountains you control.

Lightning Blast deals 4 damage to any target.

Destroy target artifact or land. It can't be regenerated.

Haste (This creature can attack and {T} as soon as it comes under your control.)

When Goblin Gardener dies, destroy target land.

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