Goblin Mountaineer

Mountainwalk (This creature can’t be blocked as long as defending player controls a Mountain.)

Eye Spy

Look at the top card of target player’s library. You may put that card into their graveyard.

Hunting Moa

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Hunting Moa enters the battlefield or dies, put a +1/+1 counter on target creature.

Fodder Cannon

, , Sacrifice a creature: Fodder Cannon deals 4 damage to target creature.

Goblin Marshal

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Goblin Marshal enters the battlefield or dies, create two 1/1 red Goblin creature tokens.

Coercion

Target opponent reveals their hand. You choose a card from it. That player discards that card.

Bottle of Suleiman

, Sacrifice Bottle of Suleiman: Flip a coin. If you win the flip, create a 5/5 colorless Djinn artifact creature token with flying. If you lose the flip, Bottle of Suleiman deals 5 damage to you.

Giant Growth

Target creature gets +3/+3 until end of turn.

Phyrexian Defiler

, Sacrifice Phyrexian Defiler: Target creature gets -3/-3 until end of turn.

Treefolk Mystic

Whenever Treefolk Mystic blocks or becomes blocked by a creature, destroy all Auras attached to that creature.

Crop Rotation

As an additional cost to cast this spell, sacrifice a land.
Search your library for a land card, put that card onto the battlefield, then shuffle your library.

Winding Wurm

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Goblin Spelunkers

Mountainwalk (This creature can’t be blocked as long as defending player controls a Mountain.)