Jalira, Master Polymorphist

, , Sacrifice another creature: Reveal cards from the top of your library until you reveal a nonlegendary creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

See Red

Enchant creature
Enchanted creature gets +2/+1 and has first strike.
At the beginning of your end step, if you didn’t attack with a creature this turn, sacrifice See Red.

Head Banger

Whenever you crank Head Banger, target creature must be blocked this turn if able.

Gift Horse

Whenever you crank Gift Horse, roll two six-sided dice. Create a number of 1/1 red Goblin creature tokens equal to the difference between those results.

Targeting Rocket

Whenever you crank Targeting Rocket, target creature blocks this turn if able.

Goblin Slingshot

Whenever you crank Goblin Slingshot, creatures you control get +2/+0 and gain trample until end of turn.

Buzz Buggy

Whenever you crank Buzz Buggy, target creature gets +2/+0 and gains trample until end of turn.

Hard Hat Area

Whenever you crank Hard Hat Area, roll two six-sided dice. Hard Hat Area assembles a number of Contraptions equal to the difference between those results. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Boomflinger

Whenever you crank Boomflinger, roll two six-sided dice. Boomflinger deals damage to target player or planeswalker equal to the difference between those results.

Thud-for-Duds

Whenever you crank Thud-for-Duds, roll two six-sided dice. Thud-for-Duds deals damage to target creature equal to the difference between those results.

Rampaging Baloths

Trample
Landfall — Whenever a land enters the battlefield under your control, you may create a 4/4 green Beast creature token.

Crowned Ceratok

Trample
Each creature you control with a +1/+1 counter on it has trample.

Goblin Goon

Goblin Goon can’t attack unless you control more creatures than defending player.
Goblin Goon can’t block unless you control more creatures than attacking player.

Ember Hauler

, Sacrifice Ember Hauler: It deals 2 damage to any target.

Rowdy Crew

Trample
When Rowdy Crew enters the battlefield, draw three cards, then discard two cards at random. If two cards that share a card type are discarded this way, put two +1/+1 counters on Rowdy Crew.

Wily Goblin

When Wily Goblin enters the battlefield, create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)

Rowdy Crew

Trample
When Rowdy Crew enters the battlefield, draw three cards, then discard two cards at random. If two cards that share a card type are discarded this way, put two +1/+1 counters on Rowdy Crew.

Behemoth Sledge

Equipped creature gets +2/+2 and has trample and lifelink.
Equip