Mainboard (60)
Creatures (33)
Instants (3)
Sideboard (15)
This is a mirror match where both decks are nearly identical, so small advantages compound quickly — the player who resolves Goblin Lackey first and protects it typically wins. Goblin Tinkerer has no relevant artifacts to target in the mirror, and Goblin King provides minimal upside since both players are already running Mountains. Pyrokinesis comes in as a free instant-speed sweeper that can devastate your opponent's board after a Goblin Lackey dump or punish them for going wide with Siege-Gang Commander tokens. The key resource battles are Rishadan Port wars and Goblin Ringleader chains, so prioritize sequencing your tutors (Goblin Matron) to find Goblin Sharpshooter, which is a game-winning engine against small tokens. Wasteland timing is critical — use it to cut off your opponent's mana before they can fire off a Ringleader.
Mono-Blue Stiflenought wins by using Stifle to counter Phyrexian Dreadnought's triggered ability, then protecting it with a wall of free counterspells like Foil, Gush, and Daze while you're locked out by Rishadan Port. Your Goblin engine is fast enough to race, but counterspells will stall your key plays — bring in Pyroblast and Red Elemental Blast to fight through their countermagic and answer any resolved Dreadnoughts or Vision Charms. Naturalize and Goblin Tinkerer have minimal targets in this matchup and come out to make room. Keep Mogg Fanatic in as a way to ping off Stifle-saved Dreadnoughts if they ever become 12/12s, and prioritize curving out through Goblin Warchief to go wide before they stabilize.
Mono-Black Midrange attacks you through discard (Cabal Therapy, Duress, Hypnotic Specter) and creature removal (Smother, Diabolic Edict), so protecting your hand and board presence is critical. Pyroblast and Red Elemental Blast answer Hypnotic Specter and Graveborn Muse efficiently while also countering Cabal Therapy if they cast it rather than flashback it. Pyrostatic Pillar punishes their Dark Ritual-fueled starts and their discard spells, slowing down their tempo plays significantly. Naturalize and Goblin Tinkerer come out as they have minimal targets — the opponent's relevant artifacts are limited to Cursed Scroll and Mishra's Factory, which your Goblins can race or Wasteland can handle. Your primary game plan is to deploy threats faster than their removal can answer them; Goblin Lackey and Goblin Warchief accelerating Siege-Gang Commander or Goblin Ringleader will outpace their two-for-one discard package.