The Construct tribe hasn’t gotten much love throughout the history of Magic. These machines are rarely anything to write home about, and tend to come in the form of good utility creatures that lots of decks want to play. But nowl, Standard has enough Constructs to work well together, a lord for all tribes, and one of the best planeswalkers in the format.
Karn, Scion of Urza is a dream come true. Not only can Karn draw tons of extra cards with high loyalty, but he can start making Construct tokens. In a deck filled with artifacts, these can be real threats. A few other artifacts in play and you’re looking at churning out a couple of 5/5s before drawing extra cards.
Metallic Mimic is the lord every deck can use but that Constructs can really abuse. Giving your creatures +1/+1 counters is a bigger bonus in this deck than just pumping every creature, but it does mean that the Mimic has to be the first Construct to hit the battlefield.
Walking Ballista, which is likely to remain the most played card in Standard, also happens to be a Construct. This works well with Mimic and also gives you options for both the early and late game. This deck can use Ballista as an early game removal spell better than any other, and a late game Ballista is still lights-out as it mows down opposing creatures and the opponent’s life total.
Scrap Trawler makes Walking Ballista truly insane. Playing an early Ballista and putting it at risk of being killed for little value is a huge cost in most decks, but that’s minimized when you can bring it back later. Generating value whenever your artifacts go to the graveyard makes Scrap Trawler pretty awesome even outside of KCI decks in Modern.
Foundry Inspector gives you another relatively efficient threat that will make your future threats, well, more efficient. A 3/2 for 3 Construct is already a reasonable deal, but making all of your artifacts cheaper is some serious value. Curving a Foundry Inspector into a 5-drop is a big game, and even just getting a “free” mana for Ballista is often relevant.
Llanowar Elves is not a Construct, but this reprint changed the face of Standard. The 3-drops hit hard, and playing one on turn 2 is a massive tempo swing. Having your mana turn into a late-game attacker, even if it’s only swinging for 1, matters, and late-game mana is never dead in a deck with Ballistas.
Verdurous Gearhulk is the top of your curve and yet another Construct. Turn-1 Llanowar Elves, turn-2 Foundry Inspector, turn-3 Verdurous Gearhulk can happen, and it’s every bit as absurd as it sounds. Gearhulk also combos well with Ballista, which can suddenly become a 6/6 and threaten 12 points of damage unblocked in a turn. Skysovereign, Consul Flagship is your other 5-mana artifact spell of choice, and it’s also an insane turn-3 play!
Glint-Nest Crane gives you a little protection in the air, a cheap creature, and a way to find your many impactful artifacts. This deck has 19 main deck artifacts, so the Crane will likely be hitting for value and often gives you the choice of which artifact you currently need the most.
Adventurous Impulse does a few important things for green decks in Standard. It lets you play a slightly lower land count, as the Impulse will often help you find the mana you need at a low cost. It also works well in decks with a lot of creatures to give you selection and fill out your curve.
You have just enough artifacts in your deck to make Metallic Rebuke really strong. A 1-mana counterspell is fantastic, and even as a Mana Leak you can really cash in on Metallic Rebuke. There aren’t too many cards that you’re critically concerned with, and many of them cost quite a bit of mana like Settle the Wreckage, Fumigate, Teferi, and other big spells. Rebuke does a great job at stopping them and making sure that you can win the game.
The Constructs are really strong in Standard right now, and seeing a base deck of Metallic Mimic, Scrap Trawler, Karn, and Walking Ballista should come as no surprise to anyone looking to succeed in the format!