Ruinous Gremlin

{2}{R}, Sacrifice Ruinous Gremlin: Destroy target artifact.

Salivating Gremlins

Whenever an artifact enters the battlefield under your control, Salivating Gremlins gets +2/+0 and gains trample until end of turn.

Territorial Gorger

Trample
Whenever you get one or more {E} (energy counters), Territorial Gorger gets +2/+2 until end of turn.

Terror of the Fairgrounds

Brazen Scourge

Blisterspit Gremlin

{1}, {T}: Blisterspit Gremlin deals 1 damage to each opponent.
Whenever you cast a noncreature spell, untap Blisterspit Gremlin.

Thriving Grubs

When Thriving Grubs enters the battlefield, you get {E}{E} (two energy counters).
Whenever Thriving Grubs attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it.