Doom Prevails Upgrade Guide: 5 Best Cards and 5 Budget Picks

Doom Prevails is the Grixis (blue, black, red) deck in Marvel Super Heroes, and it is a villain's buffet. Led by Doctor Doom, King of Latveria, it leans on three connected ideas: connive to filter your draws and grow your creatures, discard lands to fuel Doom's life drain, and grind the table down with a roster of iconic bad guys. There is also a second commander in the box, Loki, the Deceiver, who many players think is the more powerful option.

This deck ships with a lot of flavor and a little less focus. The upgrade job is to pick a direction, support the connive and discard engine properly, and trim the cards that are there for the comic-book cameo rather than the gameplay.

Doom Prevails is the Grixis (blue, black, red) Marvel Super Heroes precon led by Doctor Doom, King of Latveria, and the strongest build moves Loki, the Deceiver into the command zone instead. Five budget upgrades cost about $14 combined at current prices: Doctor Octopus, Carnage, An Offer You Can't Refuse, Bloodline Bidding and Crimson Cowl. Cyclonic Rift (about $30) and Crucible of Worlds (about $26) are the premium adds.

Connive lets you loot and grow at the same time, and Doctor Doom turns your discards into life loss for the table. The strongest direction across the community is to promote Loki, the Deceiver to the command zone, keep Doctor Doom in the 99, and build around cheap villains, reanimation, and discard payoffs. Loki draws you cards off villain combat damage and copies your best villain when he attacks, which abuses every enter-the-battlefield and death trigger you can find.

Needs upgrades before it feels good. The stock list mixes slow cameo cards with a thin connive engine and little interaction; it plays much better after the swaps in this guide.

Doom Prevails has 37 lands and 15 basics. Five lands always enter tapped: Canyon Slough, Coastal Peak, Fetid Pools, Crumbling Necropolis and Path of Ancestry, and Terramorphic Expanse fetches a tapped basic too. The rest is solid: the check lands, reveal lands, Frostboil Snarl and Luxury Suite come in untapped most of the time.

These five land-for-land swaps keep the count at 37 and remove almost every tapped land for under $4.

That is about $3.57 for all five, and every swap keeps the land count the same. Prices checked October 12, 2026, cheapest non-foil printing on Scryfall.

Best cards regardless of price. Prices shift over time, so use these as rough guides.

Cyclonic Rift (around $30). The premier blue reset button. Overloading it sweeps the wide boards Grixis struggles against while your own villains stay put.

Demonic Tutor (around $62). The deck runs many singleton engines, so a clean tutor that finds Doom, Loki, a board wipe, or a reanimation spell on demand is worth a lot.

Crucible of Worlds (around $26). Doom wants you discarding lands, and this lets you replay them straight from the graveyard. The discard cost turns into pure value.

Green Goblin, Nemesis (around $10). A villain that makes a Treasure every time you discard a land, bridging Doom's discard plan into real ramp.

Norman Osborn // Green Goblin (around $14). An unblockable conniver that flips into a graveyard engine, letting you recast the cards you connived away at a discount.

Four of these cost about $3 or less per copy. Doctor Octopus has climbed to about $7 since June and is still the strongest of the five.

Doctor Octopus, Master Planner (around $7). A villain anthem that also refills your hand to eight cards each end step. Card advantage and a team buff in one.

Carnage, Crimson Chaos (around $1). It returns a cheap creature from your graveyard when it enters, and you can cast it from your graveyard for two mana on a turn you discard it, so the copies you connive or discard away are never wasted.

An Offer You Can't Refuse (around $3). A cheap, efficient counterspell to protect your engine or stop a rival's wipe. The precon badly wants more interaction.

Bloodline Bidding (around $2). Mass villain reanimation with convoke, bringing back everything you tossed to connive for one big revenge turn.

Crimson Cowl, Master of Evil (under $1). Makes villain tokens when your villains attack and doubles as a fantastic Loki copy target for repeated token generation.

Here are the same ten cards sorted into two buying tiers with current prices, using the cheapest nonfoil printing of each card. Prices as of September 27, 2026 (TCGplayer market via Scryfall); they move.

The free Marvel precon upgrade kit also has a mid tier and one-click TCGplayer cart links, so you can load a whole tier into your cart at once.

Ten adds means ten cuts. Start with the five cameo cards most players flag, then trim the slow or random pieces. No lands come out, so the mana base stays intact.

This is the official 100-card list as Wizards of the Coast published it, grouped by card type. Loki, the Deceiver, the alternate commander, is listed with the creatures. Source: Wizards of the Coast Marvel Super Heroes Commander decklists.

Commander (1): Doctor Doom, King of Latveria

Creatures (31): Molecule Man; Helmut Zemo, Mastermind; The Frightful Four; Iron Monger, Sadistic Tycoon; Klaw, Master of Sound; Abomination, World Ravager; Batroc the Leaper; Killmonger, Ruthless Usurper; Lady Loki, Agent of Chaos; Living Laser; Puppet Master, String Puller; Stilt-Man, Towering Terror; Titania, Proud Pummeler; Kang Prime; Loki, the Deceiver; Red Ghost, Intangible Genius; The Squadron Sinister; Typhoid Mary, Fractured; Ultron, Unlimited; Tri-Sentinel, Act of Vengeance; Spark Double; Titan of Littjara; Baron Strucker, HYDRA Overlord; Moonstone, Harsh Mistress; Kang, Temporal Tyrant; Madame Hydra; Containment Construct; Chameleon, Master of Disguise; Tombstone, Career Criminal; Superior Foes of Spider-Man; Prowler, Clawed Thief

Instants (5): Lethal Scheme; Chaos Warp; Bedevil; Withering Torment; Terminate

Sorceries (8): Extract Power; Endless Ranks of HYDRA; Kindred Dominance; Toxic Deluge; Blasphemous Act; Night's Whisper; Syphon Mind; Vandalblast

Artifacts (12): Damocles Base, Sword of Kang; Loki's Scepter; Doom's Time Platform; Currency Converter; Progenitor's Icon; Skullclamp; Arcane Signet; Patchwork Banner; Sol Ring; Swiftfoot Boots; Talisman of Dominance; Talisman of Indulgence

Enchantments (6): Glorious Purpose; Kang Dynasty; Age of Ultron; Archnemesis; Black Market Connections; Propaganda

Lands (37): Canyon Slough; Choked Estuary; Coastal Peak; Dragonskull Summit; Drowned Catacomb; Exotic Orchard; Fetid Pools; Foreboding Ruins; Frostboil Snarl; Luxury Suite; Scavenger Grounds; Scorched Geyser; Smoldering Marsh; Sulfur Falls; Sunken Hollow; Villainous Hideout; Command Tower; Crumbling Necropolis; Path of Ancestry; Secluded Courtyard; Terramorphic Expanse; Unclaimed Territory; Island (4); Swamp (6); Mountain (5)

Doom Prevails rewards you for committing to a plan. Switch to Loki, load up on cheap villains and discard payoffs, and add interaction the stock deck lacks. The five budget picks above sharpen the engine for about $14 combined, and Crucible of Worlds plus Cyclonic Rift are the high-end cards that make the whole scheme hum.

Pick a direction first. Promote Loki, the Deceiver to the command zone, keep Doctor Doom in the 99, and build around cheap villains, reanimation and discard payoffs. Then add the interaction the stock list lacks and cut the cameo cards. Five budget picks, about $14 combined, sharpen the engine before you spend anything on the high end.

Most players move Loki, the Deceiver to the command zone. He draws off villain combat damage and copies your best villain when he attacks, which abuses every enter-the-battlefield and death trigger in the deck. Doctor Doom, King of Latveria is still a fine face commander if you want the discard-to-life-drain plan up front.

It is fun and flavorful but a little unfocused. Several villain cards are included for the comic-book cameo more than the gameplay, and the stock list is light on interaction. A few targeted swaps make it much sharper, which is why the upgrade job here is about picking one plan and supporting the connive and discard engine properly.

Doctor Octopus, Master Planner (about $7) gives your other Villains +2/+2 and refills your hand to eight each end step. Carnage, Crimson Chaos (about $1) returns a cheap creature from your graveyard. An Offer You Can't Refuse (about $3) is the cheap counterspell the deck badly wants. Bloodline Bidding (about $2) and Crimson Cowl (under $1) round it out.

Start with The Frightful Four, a 4/4 whose drain only hits an opponent's first noncreature spell each turn, and Klaw, Master of Sound, which has little synergy with connive or discard. Damocles Base, Sword of Kang is not a Villain, so Loki cannot copy it. Superior Foes of Spider-Man and Helmut Zemo, Mastermind follow. The full list of ten cuts is above.

At September 27, 2026 prices, the five budget picks cost about $14 and the five premium picks about $142, so all ten come to roughly $157. Demonic Tutor (about $62) and Cyclonic Rift (about $30) are most of that. Skip those two and the other eight cards cost about $64 together.

Want the whole set of guides at once? Here are all four Marvel precon upgrade kits in one place.

Upgrading more than one Marvel deck? Here are our other guides:

Marvel: Darkhold Destiny releases April 9, 2027, with four Commander decks. Commanders and decklists have not been revealed yet. Our Darkhold Destiny Commander decks guide covers all four, and each deck has its own upgrade guide:

Sources: Cardboard Chronicles breakdown, Wargamer upgrade guide, EDHLAB upgrade guide, Draftsim upgrade guide. Decklist from Wizards of the Coast. Prices updated September 27, 2026 (TCGplayer market via Scryfall).