Legacy is in a strange place these days. Crushed between the fair blue package of Deathrite Shaman, Brainstorm, Force of Will, Ponder, and friends on one side and the one-sided Chalice of the Void, Blood Moon, Dark Depths, or all-in combo decks on the other, it would seem like the format is slowly approaching a death spiral for innovation. Most high-level tournament results seem to bear out the same story, at least on the surface. But scratch a little deeper, look a little harder, and you can still find bold explorers trying all manner of twists and variations to squeeze out an edge in the Cadillac of Magic formats.
Bomat Courier Isn't Just for Standard Anymore
Never let it be said that Grixis Delver isn't the tried-and-true top deck in Legacy at this point. The stock list, developed mainly through word-of-mouth among the best pilots, like Bob Huang, Noah Walker, Dylan Donegan, and a host of others, is absolutely incredible. It's a well-oiled machine, down to the usual two maindeck Spell Pierces and single maindeck Forked Bolt. However, some bold innovators consistently try to make something new and different happen to throw opponents for a loop, and Zan Syed's Bomat Couriers are the best of the bunch.
The theory behind the card is solid. A deck that lacks true sources of card advantage often runs low on gas against the other fair decks of the format, and lowering the average converted mana cost of the deck to better deploy spells while disrupting via Daze and Force of Will is almost always a good thing. By replacing True-Name Nemesis and Spell Pierce, cards that are generally known, with additional must-kill threats, Zan has brought Grixis Delver a totally new game plan that many folks won't be ready to answer. Everyone has their Toxic Deluges, their Diabolic Edicts, or their Marsh Casualties at the ready to make True-Name Nemesis look a little silly. Well-informed folks aren't often running their expensive non-creatures into untapped mana unless they have literally no other choice. This means that A) you can bluff Pierce more often than ever before, and B) you're often demanding the same specialized removal spell with a one-mana card as you did with a three-mana one.
A hand of Bomat Courier, Daze, two Force of Wills, two random blue cards, and a single land is incredible and will generally result in a bunch of free disruption followed by a quick refuel without ever needing to get above a single land. Compared to a slower, ponderous three-mana threat, a threat for which people have time to find their specific answer, Bomat Courier seems like a slam-dunk change-up.
"But wait!" you say. "Bomat Courier is so bad against Deathrite Shaman! Why, it doesn't attack through a Deathrite at all! If the opponent has a Deathrite Shaman and you don't have a way to keep parity or answer it, you're going to lose!"
Uh, I thought we just got done discussing how you already almost always lose to an uncontested Deathrite Shaman in the fair deck mirrors. Of course, an early answer for Deathrite is practically mandatory, and the common play prioritization for Deathrite mirrors involves usually killing an enemy Shaman as soon as possible. Bomat Courier does little to change this, other than leaning in even harder and admitting that it's really, really, really important to answer opposing Shamans so that your little draw engines can do their work.
When that creature warps the format so hard that the mirror match is practically defined by who has more answers for it, it's okay to sigh and make yourself even more vulnerable to being behind on Deathrite parity. Oftentimes when both players have a Deathrite Shaman, the player with a Bomat Courier can manipulate the Deathrite war to force the opponent to tap their Shaman at an inconvenient time, sneaking in the robot mailman for an extra card or two.
There are, incidentally, two cute side bonuses for Bomat Courier in Grixis Delver. One is the fact that with fetchlands, a well-practiced player can figure out what cards lie under their Bomat at any time. Just take a look through the deck and (quickly, if possible) see how many Force of Wills, Lightning Bolts, or whatever other key card are still in there. Process of elimination is a beautiful thing. Obviously on MTGO this is way easier, but some real cardboard practice can make this trick rather painless.
Additionally, Bomat Courier offers another avenue to victory against the hated Blood Moon decks. A few Force of Wills, Bomat Couriers, Young Pyromancers, and Lightning Bolts can still put in the necessary work to drag home a win against an early Moon. It's not easy, but a little extra equity is never a bad thing.
One final note before the decklist: It's important to understand that Bomat Courier often dramatically changes your play patterns when piloting Grixis Delver. Where before it was often important to carefully husband your Force of Wills to counter the last (or most important) spell possible, now there is huge motivation to just fire that bad boy off on the first juicy target.
You want an empty hand to fill with fresh cards, and you want to use your free counterspells to keep the road clear for your Courier, so spending a Force of Will on that Deathrite Shaman, Baleful Strix, or other random durdle is way, way more desirable in Grixis Courier. Get hellbent, then get restocked. It's cool to have a single card incentivize us to just chuck old card advantage paradigms out the window in favor of battlefield presence. New incentives to change our play patterns are what keeps this game alive and dynamic!
It would be reasonable to add the third Young Pyromancer back in the maindeck over either the fourth Bomat Courier or the single Cabal Therapy, and the sideboard could change to include a Pithing Needle, a Diabolic Edict, a Marsh Casualties, a Grim Lavamancer, an Umezawa's Jitte, or possibly a Dismember or Fatal Push to address a weakness to Tarmogoyf. I'm a firm believer, however, in the value of proactive disruption like Thoughtseize over the traditional inclusion of a Flusterstorm or additional Pyroblast. The choice of Abrade vs. Ancient Grudge is also up for debate, as the added flexibility competes with the potential for a powerful two-for-one against a deck like Death and Taxes. In order to properly address the theoretically unfavorable matchup against Czech Pile, a package of Bitterblossom and/or Liliana, the Last Hope is practically mandatory.
Regardless of specific choices for the sideboard, the advent of a powerful source of card advantage is a great reason to start thinking more about what outdated technology might still be lingering around in a calcified format like Legacy.
Medium Depths is Surprisingly Better Than The Name Implies
Speaking of calcified technology, there are now three distinct ways to make a 20/20 in this format. The traditional Lands archetype is powerfully grindy with the potential to assemble a quick win if the opponent makes a misstep. Turbo Depths cedes the potential to lock out an opponent for a dramatically increased percentage of turn-two Marit Lages, as well as a hefty helping of discard to improve traditionally weak matchups against Storm and Sneak and Show. But a few weeks ago, Jody Keith showed the world that there wasn't quite a need to go all-in on the 20/20, and that it was eminently possible to play a fair package of Deathrite Shamans and Dark Confidants instead of Lotus Petals and Elvish Spirit Guides.
Enter Medium Depths. It's not too fast, not too slow, just the right speed to get the job done while being extra-resilient to the all-too-common Diabolic Edicts that litter sideboards as a prophylactic measure against Marit Lage. Here's the list I played at Grand Prix Toronto this past weekend with Hunter Cochran and Andrew Jessup as my trusty Standard and Modern copilots.
There's a lot that can be done with the Medium Depths shell. One can play Tarmogoyf to supplement the fair game plan, as the big creature is nearly unkillable for most Grixis Delver lists. Tireless Tracker is excellent, but alone it's a bit slow. A complete gearshift into a midrange creature strategy would be truly interesting. Living Wish is a strong option that I simply did not have time to explore, as is a Ramunap Excavator or two. More Marsh Casualties are certainly useful against decks like Elves and Death and Taxes. The fact remains, though, that a cross between Aggro Loam, Lands, and Turbo Depths is possible and can certainly be tuned to be a contender in contemporary Legacy. The common idea here is to weave your lists around the common answers people are preparing for the angle of attack they anticipate and exploit their unpreparedness. This is why rogue innovations can pay off so handsomely; many opponents won't know how to sideboard or what cards to counter against an unusual cross between two different known strategies.
Deathrite Shaman into...Blood Moon?!
Speaking of unusual crosses between strategies, the final innovation to speak of this week is Wilson Hunter's Grixis Moon deck, which he used to great effect against Delver and Czech Pile decks all weekend. I didn't get his precise list, but my reverse-engineering from playing against him produced this rough sketch:
The idea is a generally potent plan against Marit Lage decks with all the Edicts, Moons, and Dead//Gones, and a plan against the other fair midrange blue decks of "keep pace, slam Moon, lock them out in the midgame." It's ceding the powerful Delver/Wasteland/Daze triumvirate that separates blue tempo from blue midrange in Legacy, and in exchange gaining relative immunity to opposing Blood Moons as well as the opportunity to use some of its own. This tradeoff ebbs and flows in popularity, with similar plans like Back to Basics in straight U/W Miracles gaining steam at the moment. Learn to respect suspicious basics out of blue midrange decks. If your opponent is packing more than two basics, there's a decent chance they could lock you out at some point in the midgame. Exploiting opponents who don't think of Blood Moon against an ostensibly fair Deathrite Shaman deck is one of the many ways to get an asymmetrical edge in pseudo-mirrors.
Bomat Delver. Medium Depths. Grixis Pyro. These are three of the major Legacy innovations that merit attention, ways to improve in a format that has largely gone unnoticed in the wake of the seemingly unstoppable Modern juggernaut. Use them to gain an edge over those who will stick to the same fundamental strategies with few frills or fancy tweaks. At the very least, keep experimenting, lest you fall into lazy patterns that leave you flat-footed when someone else breaks it.