Avengers Assemble is the most accessible Commander precon in MTG Marvel Super Heroes — and with $20 in targeted upgrades it becomes a genuinely competitive deck at casual and precon-power tables. The core is already strong: Captain America, Team Leader leads a Hero typal Jeskai build with a full Avengers roster and the Teamwork mechanic. These are the first upgrades to make, in order, to maximize that foundation without breaking the bank.
Keep Reading: All 4 Commander Precons Ranked · Full Budget Upgrades Guide Under $30
The Commander: Captain America, Team Leader
Captain America, Team Leader is a Jeskai (White/Blue/Red) legendary creature built entirely around the Teamwork mechanic. His abilities reward you for tapping your creatures cooperatively — the more Teamwork costs you pay, the more value you generate across the Hero roster. He does not win games by himself. He creates the conditions for your Avengers to win games.
The three cards that unlock his full potential are already in the precon — Agent Maria Hill, Iron Man, and the Avengers Tower land. Your job is to make sure those three cards are on the battlefield as often as possible, as early as possible.
The Cards Already Making the Deck Work
Iron Man, Armored Avenger — The Equipment and Aura payoff that makes Hulkbuster Armor dangerous. He scales with every piece of gear on the battlefield and turns combat sideways. Keep him protected.
Agent Maria Hill — The best Teamwork payoff in the box. She draws a card and gains a +1/+1 counter every time you tap her to pay a Teamwork cost. In a full Avengers deck she generates outrageous card advantage per turn. She is the card opponents should be removing first — protect her at all costs.
Rescue, Pepper Potts — One of the more quietly powerful cards in the 99. Her ability to protect your commander or key creatures from single-target removal gives the deck resilience that white-based precons often lack. She is the reason your Captain America survives long enough to do his job.
Upgrade 1: Maskwood Nexus ($3–5)
Maskwood Nexus makes all creatures every creature type simultaneously. Your entire board becomes Heroes, Humans, Avengers, and every other creature type at once.
Why this is the best $5 upgrade: The precon already runs Herald’s Horn, Door of Destinies, Kindred Discovery, and Path of Ancestry — all tribal synergy pieces that require a shared creature type to trigger. Maskwood Nexus turns all of those on for every creature you control, including tokens and noncreature tokens you might create. It also means every creature you play triggers Path of Ancestry’s scry ability. The value spike is immediate and enormous for the price.
Upgrade 2: Kindred Discovery ($4–6)
Choose a creature type. Whenever a creature of that type you control enters or attacks, draw a card.
Why this matters: Kindred Discovery is already in the precon — but if your copy is missing or you want a second approach to the same effect, this is the card. Name Hero, and every creature you cast or that enters through token generation draws you a card. In a deck that wants to develop a wide board of named Avengers, Kindred Discovery converts that board development directly into card advantage. Combined with Maskwood Nexus, you draw for every creature entering regardless of type.
Upgrade 3: Urza’s Incubator ($6–10)
As Urza’s Incubator enters, choose a creature type. Creature spells of the chosen type cost two less to cast.
Why this changes the deck: Name Hero. Every single creature in the Avengers Assemble deck is a Hero — Iron Man, Thor, Captain Marvel, Black Widow, Hawkeye, the Wasp, Vision, and every other Avenger costs two less to cast. This single card changes the deck’s curve dramatically. Cards that previously required five or six mana to play on curve become three or four mana plays. The tempo gain compounds over multiple turns as the Hero roster deploys faster than opponents can answer it.
Upgrade 4: Esper Sentinel ($5–8)
Whenever an opponent casts a noncreature spell, draw a card unless that player pays X, where X is Esper Sentinel’s power.
Why every white Commander deck runs this: Esper Sentinel is a one-mana white artifact creature that either draws you a card every time an opponent plays an instant or sorcery, or taxes them out of playing it efficiently. In a four-player game, one of your three opponents is almost always casting a noncreature spell on every turn cycle. Esper Sentinel draws two to three cards per turn cycle on average with no additional investment — it is the most efficient card draw engine available in white at any price point.
Upgrade 5: Smothering Tithe ($6–8)
Whenever an opponent draws a card, that player may pay two mana. If the player doesn’t, you create a Treasure token.
Why this is worth the price: Smothering Tithe generates Treasure tokens at an absurd rate in multiplayer. Each opponent draws cards on their turn, and the two-mana tax is almost always prohibitive in the mid and late game when mana is committed to threats. In a four-player game with Rhystic Study on the table (from an opponent), Smothering Tithe generates four Treasure tokens per card drawn. The mana acceleration transforms the deck’s mid-game dramatically — you are casting two spells per turn while opponents are casting one.
The Complete $20 Package
Add all five upgrades for under $25 total: Maskwood Nexus ($3–5) + Kindred Discovery if needed ($4–6) + Urza’s Incubator ($6–10) + Esper Sentinel ($5–8) + Smothering Tithe ($6–8). Start with Maskwood Nexus and Urza’s Incubator as your first two — they have the highest individual impact and make every other card in the precon better.
What to Cut First
Speed, Young Avenger — Low power and toughness with marginal counter synergy. Cut first.
Quicksilver, Speedster — Fast on paper, underwhelming in practice. The haste ability rarely generates enough impact.
Love on the Battlefield — Too narrow. The lifelink condition makes it situationally useful at best. Replace with Smothering Tithe directly.
Tome of Legends — Slow draw engine that requires attacking. Replace with Esper Sentinel directly — same slot, far more efficient.
Two ETB-tapped lands — Scorched Geyser and Coastal Peak are strictly worse than basic lands or any dual land that enters untapped. Replace with the cheapest untapped duals available in Jeskai colors.
Final Verdict
Avengers Assemble is already the best precon for new players and Marvel fans. With $20–25 in targeted upgrades it becomes the best precon-plus deck at any casual Commander table. The five cards above do not break the flavor or the identity of the deck — they amplify exactly what the precon is already trying to do, making the Avengers roster more consistent, more efficient, and more explosive.
MTG Marvel Super Heroes releases June 26, 2026. Grab these upgrades now — Esper Sentinel and Smothering Tithe in particular see consistent demand spikes whenever a new white Commander deck releases, and both will be harder to find at current prices after launch week.
Keep Reading: All 4 Commander Precons Ranked · 10 Marvel Cards That Make Awesome Commanders · MTG Marvel: Complete Guide 2026
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