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.

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.

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

Cyclonic Rift (around $40). The premier blue reset button. Overloading it sweeps the wide boards Grixis struggles against while your own villains stay put.

Demonic Tutor (around $70). 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 $34). 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 $13). A villain that makes a Treasure every time you discard, bridging Doom's discard plan into real ramp.

Norman Osborn // Green Goblin (around $9). An unblockable conniver that flips into a graveyard engine, letting you recast the cards you connived away at a discount.

All confirmed under about $5 per copy.

Doctor Octopus, Master Planner (around $3). 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). A villain you can cast from your graveyard for two mana, so the copies you connive or discard away are never wasted.

An Offer You Can't Refuse (around $2). 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 (around $2). Makes villain tokens when it attacks and doubles as a fantastic Loki copy target for repeated token generation.

The deck leans on flavor cards that do not pull their weight. Common cuts include The Frightful Four, a near-vanilla body whose ability mostly helps opponents, Klaw, Master of Sound, which has a weak rate and little synergy, and Damocles Base, Sword of Kang, a strong vehicle that is not a villain and lets opponents pick the worse mode. Superior Foes of Spider-Man and Helmut Zemo also get flagged often.

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 under $10 combined, and Crucible of Worlds plus Cyclonic Rift are the high-end cards that make the whole scheme hum.

Should I play Doctor Doom or Loki as the commander? Many players prefer moving Loki, the Deceiver to the command zone for his card draw and villain-copying, while keeping Doctor Doom, King of Latveria in the 99. Doctor Doom is still a strong face commander if you want the life-drain plan up front.

Is Doom Prevails good out of the box? It is fun and flavorful but a little unfocused, with several villain cards included for the comic-book cameo more than the gameplay. A few targeted swaps make it much sharper.

What are the best budget upgrades for Doom Prevails? Doctor Octopus, Master Planner, Carnage, Crimson Chaos, An Offer You Can't Refuse, Bloodline Bidding, and Crimson Cowl, Master of Evil are all strong and cost a couple of dollars each.

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

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Sources: Cardboard Chronicles breakdown, Wargamer upgrade guide, EDHLAB upgrade guide, Draftsim upgrade guide. Prices approximate as of June 2026.