Doom Prevails Upgrade Guide: Turning the Doctor Doom Precon Into a Focused Connive Deck

Precon · by Andreas Truszkowski-Graw · June 28, 2026

Doom Prevails has the best commanders in the Marvel set – but the murkiest plan. This upgrade guide commits the deck to one line: connive, discard, and Doctor Doom's land drain. With concrete cuts and four budget stages (from $0 to "no budget"), the scattered precon becomes a focused Bracket 3 discard deck – complete with Oracle-accurate card breakdowns, the Ultron combo, and an at-a-glance upgrade table.

Doom Prevails Upgrade Guide: Turning the Doctor Doom Precon Into a Focused Connive Deck

Doom Prevails is the precon with the best commanders, the highest reprint value – and the murkiest plan. Out of the box, the Grixis deck () feels like three half-decks in one: a bit of Villain typal, a bit of copy shenanigans, a bit of connive-and-discard. The result is solid but toothless – in most reviews it's the Doctor Doom box, of all things, that lands dead last of the four Marvel decks in actual play. The good news: the flaw is easy to fix. The deck already contains a first-class engine – it's just buried under too many side quests. This guide cleans house. We commit to one line (connive + discard + land drain), cut the cards that pull elsewhere, and build the deck up in four stages into a focused Bracket 3 discard deck – from "costs nothing" to "no budget."

For orientation, here's the complete starting list to click through:

First, the Core Question: Doom or Loki?

The deck ships with two commanders, and the choice shapes the entire build.

Doctor Doom, King of Latveria is the reliable engine. At the beginning of each combat he gives one of your Villains menace and has it connive – you draw a card and discard a card; if you discard a nonland card, the creature gets a +1/+1 counter. And the second sentence is the real kicker: "Whenever you discard one or more land cards, each opponent loses 2 life." Worth knowing – you may point Doom's connive trigger at Doom himself, so you don't even need a second creature to fire the machine up every turn. Doom turns the junk in your hand into cards, counters, and damage, turn after turn.

Loki, the Deceiver is the more aggressive but less reliable option. When Loki attacks, he copies one of your other Villains as a tapped, attacking token (which vanishes at end of turn), and every time your Villains deal combat damage to a player, you draw a card. That's explosive – but it has two catches: the token enters already attacking and therefore doesn't trigger "whenever this creature attacks" abilities, and Loki guarantees you no connive per turn – it first demands an open board.

Recommendation for this guide: stick with Doom. The guaranteed connive engine plus the land drain is exactly the through-line the precon lacks – and it's the cleanest thing to build on. Loki stays in the deck as an alternate commander; if you'd rather go copy-aggro, build the second half of this guide around cheap Villains, token-makers like Mysterio, Master of Illusion (more worthwhile copy targets), and a bit of reanimation instead of around pure discard.

The Engine That's Already in the Box

Before we buy anything, it's worth understanding what synergy the box already brings – because our upgrades reinforce exactly these three gears.

1. Connive sources. Beyond Doom himself, plenty of cards generate connive triggers: Ultron, Unlimited connives when it attacks, Prowler, Clawed Thief whenever another Villain enters, Kang, Temporal Tyrant when it attacks; Baron Strucker, HYDRA Overlord lets a newly arriving Villain connive once each turn, and Villainous Hideout is even a land that makes one of your Villains connive for . Every connive feeds your hand and – on nonland discards – your counters.

2. The land drain. This is Doom's real win-condition axis, and the deck barely uses it out of the box. Every time you discard a land card, all opponents lose 2 life. With three opponents that's 6 damage for a single discarded Island. This is the line we want to feed on purpose.

3. Discard value. Containment Construct and Moonstone, Harsh Mistress let you replay discarded cards from your graveyard – turning connive from "lose a card" into "park a card." Currency Converter loots on top of that and turns your discards into Treasures (for lands) or 2/2 tokens (for nonlands). We keep those.

On top come the +1/+1 payoffs: Iron Monger, Sadistic Tycoon drops a counter on each of your Villains on every connive, and Glorious Purpose puts a +1/+1 counter on the creature and a plan counter on itself with each connive – on the sixth plan counter it reveals the top four cards of your library and lets you cast any number of them for free (the rest go to your hand). All of this is good – it's just diluted by a pile of cards that do none of it.

Stage 0 – Create Focus (Costs Nothing)

The biggest jump in the deck is free: cut what doesn't belong to the connive/discard line. These cards aren't bad, they just pull in other directions – Villain typal, spellslinger, or pure goodstuff – and that very fragmentation is the precon's problem.

Clear cuts (with reasons):

That's about twelve slots. What I'd keep, by contrast, are cards that look like a foreign body but fit the line: Skullclamp (draws cards = connive fuel, especially with the Robot tokens), Moonstone, Harsh Mistress (replay discards) and Currency Converter (loot + tokens/Treasure from discards), plus Sol Ring (always).

Stage 1 – Budget Upgrades (~$30)

Now we fill the open slots with cards that sharpen the connive/discard line. Most of it costs pennies; the only notable line items are the two Green Goblins.

The Must-Have: Norman Osborn

This is by far the most-played Doctor Doom addition there is – and rightly so. The front face is an unblockable two-mana conniver: when Norman Osborn connects with a player, he connives, every turn, guaranteed. Flip him later for and Green Goblin makes the spells you cast from your graveyard cost less and gives every nonland card in your graveyard mayhem – your discard pile becomes a second hand. Exactly what a Doom deck wants. (The price has risen sharply since the Doom reveal – now around $12.)

Discard That Hits Back

Plus cheap outlets and cheap Villains to keep the wheel turning: the discard outlets Faithless Looting and Thrill of Possibility, Chainer, Nightmare Adept (discard a card → cast a creature from your graveyard), Carnage, Crimson Chaos (a reanimator with mayhem – so castable from the graveyard itself once you've discarded it), and Mysterio, Master of Illusion (a token swarm, perfect for Skullclamp and Loki's copy trigger).

Land-Drain Fuel From the Mana Base

Here you get Doom's drain practically for free: lands that want to discard themselves.

Stage 2 – Mid-Range (~$100 Total)

This is where the focused deck becomes a real threat. These cards are the payoffs that turn the discarding you're doing anyway into a win.

Plus more engine pieces: Psychic Frog (a discard outlet that attacks and draws), Ledger Shredder (a reliable conniver), Glint-Horn Buccaneer (every discard pings each opponent – see the combo below), Archfiend of Ifnir (every discard puts -1/-1 counters on your opponents' creatures, effectively a repeatable mini-wrath), and a little more interaction with Counterspell. For the mana base, the shock lands Blood Crypt, Steam Vents and Watery Grave are now worth it – because Doom and Loki both cost , i.e. three different colored pips that need to be online reliably.

Stage 3 – High-Power / No Budget

If your pod plays at Bracket 3–4, these cards lift the deck noticeably.

The Optional Combo Line

If you want a real win condition, you already have half of it in the deck:

Ultron, Unlimited + Prowler, Clawed Thief + a free sac outlet like Ashnod's Altar (or Phyrexian Altar) form a loop: on each connive Ultron creates a 2/2 Robot Villain token for → the token enters → Prowler connives because a Villain entered → Ultron sees the connive and builds the next token → sacrifice a token to the altar for to pay the . Net +1 mana and one connive per iteration – so, arbitrarily often. With Glint-Horn Buccaneer on the table, each of these connive discards deals 1 damage to each opponent: the loop turns into lethal damage for the whole table.

It's a three-card combo and therefore legal in every bracket in principle – but it clearly pushes the deck toward Bracket 4. Rule of thumb: against a relaxed Bracket 2/3 table, leave the combo out (and fast mana like Mox Diamond too). Otherwise it warps the experience at the table instead of deciding a close game.

Interesting: according to DeckCortex, more combo seeds lie dormant in the box – each just one extra card away. For the truly hungry brewers:

These, too, are purely high-power tools – nice to know the list supports them, but only pack them if your pod plays at that level.

The Upgrade Path at a Glance

| Stage | What Matters | Key Cards | Budget | |---|---|---|---| | 0 – Focus | Cut off-plan cards | Superior Foes, Madame Hydra, Propaganda, Titania, Klaw, Batroc, Tri-Sentinel, Damocles Base, Lady Loki … (~12 cards) | $0 | | 1 – Budget | Sharpen the engine | Norman Osborn, Green Goblin Nemesis, Leader Super-Genius, Doctor Octopus, Chainer, Mysterio + cycling lands/Oscorp/Tectonic Reformation + An Offer | ~$30 | | 2 – Mid | Make discard a payoff | Monument to Endurance, Bone Miser, Crucible of Worlds, Psychic Frog, Ledger Shredder, Glint-Horn Buccaneer, Archfiend of Ifnir, Counterspell, shock lands | ~$100 (cumulative) | | 3 – High-Power | Blow the ceiling off | Sheoldred, Yawgmoth, Cyclonic Rift, Rhystic Study, Demonic Tutor, Mox Diamond, Loki God of Mischief + Ultron combo | no budget |

Where the Deck Stands Now

Out of the wrapper, Doom Prevails is a Bracket 2 deck: nice, grindy, but without a clear plan. The DeckCortex engine confirms it: the stock list contains not a single complete two-card combo – exactly the signal that points to Bracket 2 (the final 1–5 bracket is assigned separately inside DeckCortex; this is the pure combo count). After Stages 0 and 1 – that is, after the cuts plus about $30 of targeted upgrades – it already plays far more coherently: guaranteed connives every turn, a real land-drain clock, and finally enough card advantage to feed the outlets. With Stage 2 it becomes a focused, genuinely threatening Bracket 3 discard deck, and Stage 3 including the Ultron combo pushes it to the threshold of Bracket 4.

The real trick here isn't "buy expensive cards," it's making a decision: make connive + discard + land drain the only line and thin out everything else. That's exactly what Doctor Doom was built for – you just have to let him.

Rebuild the list in DeckCortex, drop in your cuts and upgrades, and have it show you the resulting power level and the combos it contains before you bring the deck to the table. That way you know up front which bracket you've just built.

All prices are Scryfall market prices (paper) and fluctuate – especially sharply for brand-new Marvel cards. Card text per Oracle/Scryfall. Combo lists and the bracket signal (the number of complete two-card combos, not a final 1–5 bracket) come from the DeckCortex engine. Inclusion and cut assessments are based on the early EDHREC data for the set and will still shift as the sample grows.

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