The Pioneer format has seen some major metagame shifts thanks to Wilds of Eldraine. The introduction of solid role-players for various archetypes, such as
Sleight of Hand


While it’s clear that numerous decks started seeing more play thanks to a handful of Wilds of Eldraine cards, we haven’t seen a ton of relatively new archetypes arise. Well, that is until now.
Up to this point, we’ve seen
Beseech the Mirror

Search your library for a card, exile it face down, then shuffle. If this spell was bargained, you may cast the exiled card without paying its mana cost if that spell's mana value is 4 or less. Put the exiled card into your hand if it wasn't cast this way.
have a huge impact on Eternal formats like Legacy, but now it appears there’s a super unique shell for the powerful tutor in Pioneer. Beseech the Mirror is definitely a strong card, but even we didn’t foresee the card being used in tandem with
Demonic Pact

• This enchantment deals 4 damage to any target and you gain 4 life.
• Target opponent discards two cards.
• Draw two cards.
• You lose the game.
. This combination of cards was showcased in Sunday’s Magic Online Pioneer Challenge, and if you’re looking for a fun, value-focused deck in Pioneer, look no further.
A Trip to Value-Town

The main goal of this deck is to out-grind your opponent by interacting with their board and drawing lots of extra cards. This deck has plenty of ways to bury the opponent in card advantage, all while casting Pioneer all-stars like
Thoughtseize


Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent left the battlefield under your control this turn.
to keep the opponent off balance.
The first source of card advantage is
Mazemind Tome

{2}, {T}, Put a page counter on this artifact: Draw a card.
When there are four or more page counters on this artifact, exile it. If you do, you gain 4 life.
. Mazemind Tome doesn’t see a ton of play these days with
Reckoner Bankbuster

{2}, {T}, Remove a charge counter from this Vehicle: Draw a card. Then if there are no charge counters on this Vehicle, create a Treasure token and a 1/1 colorless Pilot creature token with "This token crews Vehicles as though its power were 2 greater."
Crew 3
in the mix, but for decks with very few Creatures to Crew Bankbuster, Mazemind Tome can be a bit better. Having the ability to simply tap Tome to Scry is a nice bonus, as is the life you gain when you’ve activated Tome four times.
Beyond Mazemind Tome, this deck plays a lot of other permanent cards that generate value when they enter the battlefield. Cards like
Thraben Inspector


First, they help with casting
Rite of Oblivion

Exile target nonland permanent.
Flashback {2}{W}{B} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)
. Rite of Oblivion is an efficient catch-all answer to problematic cards the opponent might play, and it even has Flashback. The downside is that it requires you to sacrifice a non-Land permanent to cast it.
That brings us to our second card: Beseech the Mirror. Similarly, Beseech the Mirror is an excellent card, but it does require you to sacrifice an Artifact, Enchantment, or token to maximize. Both Spirited Companion and Thraben Inspector provide Artifacts or Enchantments to sacrifice at very little cost. They also play quite well with
Yorion, Sky Nomad

Flying
When Yorion enters, exile any number of other nonland permanents you own and control. Return those cards to the battlefield at the beginning of the next end step.
, which can “blink” your non-Land permanents with enters-the-battlefield effects to generate additional value.
Read More: Wilds of Eldraine Gives Go-Wide Archetype New Life in Standard!
Abusing Beseech the Mirror

Spirited Companion and Thraben Inspector add a lot of consistency to the deck, especially with the addition of Beseech the Mirror, but the real payoff for playing this style of deck is none other than
Treacherous Blessing

Whenever you cast a spell, you lose 1 life.
When this enchantment becomes the target of a spell or ability, sacrifice it.
.
Treacherous Blessing is a three-mana Enchantment that draws you three cards when it enters the battlefield. This is fantastic on rate, but there’s one major downside: you lose a life every time you cast a spell with Treacherous Blessing in play. This is where Rite of Oblivion and Beseech the Mirror come into play. Both of these cards let you sacrifice Treacherous Blessing and avoid losing a ton of life over the course of the game.
Casting Beseech the Mirror with Bargain is very reliable thanks to cards like Treacherous Blessing, and there are a number of powerful cards to tutor for. You can tutor for a board wipe such as
Kaya’s Wrath


Whenever you draw a card, you gain 2 life.
Whenever an opponent draws a card, they lose 2 life.
is always a good choice. The coolest four-drop option to search for, though, is undoubtedly Demonic Pact.
Demonic Pact has four abilities and lets you choose one each upkeep that hasn’t been chosen. Three of them are quite strong (draw two cards, force an opponent to discard to cards, or deal four damage to a Creature or player and gain four life), but the last ability causes you to lose the game.
Here’s the thing, though: you can simply use all three beneficial abilities, then sacrifice Demonic Pact to Rite of Oblivion or Beseech the Mirror to avoid losing the game on your next upkeep. Beseech the Mirror does everything you could want in this deck, acting as a sacrifice outlet and a strong tutor all in one.
Read More: One Wilds of Eldraine Card is a Major Player in Multiple Formats
Where This Deck Shines

As an Orzhov Midrange deck with tons of card advantage and removal, this deck shines against decks with lots of Creatures. Having access to Yorion gives this deck a big edge against opposing midrange decks, too. Against control decks, the combination of Thoughtseize and Rite of Oblivion to deal with problematic threats like
Teferi, Hero of Dominaria

−3: Put target nonland permanent into its owner's library third from the top.
−8: You get an emblem with "Whenever you draw a card, exile target permanent an opponent controls."
gives this deck a fighting chance, especially given all of the card advantage this deck can acquire.
The biggest area this deck struggles in by far is versus combo decks.
Lotus Field

This land enters tapped.
When this land enters, sacrifice two lands.
{T}: Add three mana of any one color.
combo, for example, can be a huge problem. This deck doesn’t present a lot of pressure quickly, and combo decks can largely ignore the card advantage you accumulate.
Luckily, Beseech the Mirror does help a bit in this department. Between Thoughtseize and
Duress


Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn.
or
Necromentia

Even if this deck isn’t foolproof, it’s super cool. Getting to effectively utilize Demonic Pact can be difficult, and we’re definitely here for it.
Read More: New Broken MTG Standard “Cascade” Combo Deck Flips Entire Format!