Premodern Tron Deck Guide (2026)
How to play Premodern Tron: a control deck built on the Urza lands (Urza's Mine, Urza's Power Plant, Urza's Tower), which together make seven colourless mana. The dominant build is blue-white draw-go, and there is a fringe mono-white version led by Eternal Dragon and Exalted Angel. This guide covers both decklists, the Decree of Justice engine, mulligans, sequencing, every major matchup, the sideboard and a full budget path.
How the deck wins
- The Urza lands are not a ramp-into-fatty engine here: their seven colourless mana lets a draw-go deck hold up a counterspell and still cycle Decree of Justice for a pile of soldier tokens at end of turn. The cycling is not a spell, so Mana Leak and Prohibit cannot stop it, which is why it beats other control decks.
- Colour fixing, not mana volume, is the real constraint, so Chromatic Sphere is a four-of that turns colourless mana into the white for Wrath of God and Swords to Plowshares. Masticore and Stroke of Genius are the secondary win conditions once the lands are online.
- The mono-white build wins by attrition instead: Eternal Dragon is a plainscycling land-fixer early and a recurring flier late, Exalted Angel flips into a lifelinking clock that wins the Sligh race, and Mobilization turns spare mana into an endless stream of soldiers.
Core cards
- 4 Urza's Mine
- 4 Urza's Power Plant
- 4 Urza's Tower
- 4 Swords to Plowshares
- 4 Impulse
- 4 Decree of Justice
- 4 Chromatic Sphere
- 4 Fact or Fiction
- 4 Mana Leak
- 2 Wrath of God
- 2 Stroke of Genius
- 3 Adarkar Wastes
Key cards
- Urza's Tower: One third of the engine: assembled with Urza's Mine and Urza's Power Plant the three make seven colourless mana; apart they are lands that cast nothing coloured, which is the deck's central tension.
- Decree of Justice: The win condition in every list: cycled at instant speed for X soldiers, it cannot be countered by Mana Leak or Prohibit, so it converts mana into a board against control that has no answer.
- Chromatic Sphere: The colour-fixing backbone: one mana to play, then sacrifice for any colour and a card, which is how a manabase that is half colourless casts Wrath of God on time.
- Impulse: Two mana to dig four deep at instant speed, finding the missing Urza land far more often than it finds action, which is exactly the job.
- Swords to Plowshares: One-mana unconditional exile: the clean answer to Phyrexian Dreadnought, a flipped Exalted Angel and any reanimated fatty, cheap enough to double-spell with the lands online.
- Masticore: Colourless recurring removal and a 4/4 body: with the lands assembled its ping and regeneration costs are effectively free, and it single-handedly beats Goblins and Elves.
- Eternal Dragon: The mono-white engine: plainscycle it for two to fix your lands early, then recur it from the graveyard as a 5/5 flier that discard and countermagic cannot answer and that never floods you out.
- Exalted Angel: The mono-white anti-aggro trump: a turn-three morph that flips for four mana into a 4/5 flying lifelinker, single-handedly winning the race against Sligh and Goblins.
Mulligan guide
Keep
- Two different Urza lands plus a coloured source and a cantrip or Chromatic Sphere: two pieces plus Impulse is fine, since Impulse digs four for the third.
- Reactive hands with one tron piece, Swords to Plowshares, a counter and two coloured sources: the deck works as a fine control deck even without the lands assembled.
Ship
- All three tron pieces with no coloured mana and no Chromatic Sphere: the classic trap, where you make seven colourless on turn three and cannot cast a spell.
- One-land hands unconditionally, and reactive land-light hands on the draw against Stiflenought or Sligh.
Do not mulligan aggressively chasing tron: the blue-white build has no tutors for the lands, so a functional seven without the full set beats a mulligan to five that is chasing it.
Play tips and sequencing
- Always play the Urza piece you do not yet have in play first, so a topdecked third piece is live immediately: with two Mines and a Tower in hand, lead the Tower.
- Play Chromatic Sphere on turn one but do not crack it: leave it as a mana filter to convert colourless into white later, rather than spending it for a card up front.
- Almost never hard-cast Decree of Justice: cycling it is the same mana at instant speed, cannot be countered and scales with X.
- Size X by their board, not your mana: against Goblins cycle for exactly enough to wall the board and hold up Swords to Plowshares; against Landstill with counters up, dump everything since they cannot interact.
- Against control, never tap out on your own turn: the whole plan is that Decree and Fact or Fiction are end-step plays, so pass with the lands up and let them act first.
- In the mono-white build, cycle Eternal Dragon for two whenever you are short a land, and save Abeyance for the opponent's draw step against Landstill or Enchantress, where it stops Standstill and Enchantress triggers while replacing itself.
Matchups
- Stiflenought (even): Swords to Plowshares exiles the Dreadnought and Powder Keg at one counter kills it, but a turn-two Dreadnought behind Stifle and counters ends it before the lands are online.
- Goblins (even): Wrath of God, Masticore and Decree tokens are all excellent, but their Wasteland and Rishadan Port attack your colourless lands. Circle of Protection: Red is close to a lock after boarding.
- Sligh (even): Unfavourable game one, where you durdle while they burn you out, but one to four Circle of Protection: Red plus Warmth flip it hard after boarding.
- Enchantress (unfavorable): They out-draw you and Solitary Confinement blanks your entire token clock. Even with boarded Disenchant effects you are racing an engine that started first.
- Landstill (favorable): The best matchup: cycling Decree of Justice is uncounterable, you have more raw mana and Stroke of Genius trumps the long game, so their Standstill is unplayable.
- Elves (favorable): Wrath of God, Powder Keg and especially Masticore each individually beat a board of one-toughness elves.
- Mono Black (even): Their discard hurts a deck that wants to hold cards and Cursed Scroll picks off your tokens, but you have far more card advantage and a large Decree or Exalted Angel ends it.
- UG Madness (even): Wrath of God is strong against Wild Mongrel, but Circular Logic taxes your sweepers and Roar of the Wurm rebuilds through them.
- The Rock (even): Pernicious Deed eats your Chromatic Sphere and Powder Keg but never your lands, and a Deed at one also wipes your tokens. Your mana advantage is the edge in a grind.
- Reanimator (even): Swords to Plowshares cleanly answers a single reanimated fatty and you hold counters, but a turn-two kill beats you. Tormod's Crypt after boarding is near game-winning.
Sideboard guide
- vs Sligh and Goblins: Circle of Protection: Red. The highest-impact board card in the deck: once the lands are online, paying one repeatedly to prevent all red damage is close to a lock.
- vs Stiflenought, Enchantress, Reanimator and control: Meddling Mage. Names the key card (Stifle, Replenish, Exhume or a counterspell) and buys the tempo the deck needs to set up.
- vs Reanimator and graveyard decks: Tormod's Crypt, Phyrexian Furnace. Free graveyard hate that is near game-winning against Reanimator and Recurring Nightmare.
- vs Sligh and Goblins: Hydroblast, Blue Elemental Blast. Answers their burn and creatures, and cleanly kills a resolved Phyrexian Dreadnought.
- vs Aggro and burn: Exalted Angel. A 4/5 flying lifelinker for four after morph, the single best card against Sligh's clock, and maindeck in the mono-white build.
- vs Wasteland and Rishadan Port decks: Teferi's Response, Sacred Ground. Punish or blank the land destruction that a half-colourless manabase fears most.
Budget and upgrades
Typical cost: $60–$400. The blue-white build runs about $250 to $300, almost all of it in two **Powder Keg** (around $150 the pair) and a single **Masticore**. The Urza lands, **Eternal Dragon** and **Decree of Justice** are near-free. The mono-white version is pricier at around $390 because of four **Abeyance**.
- Cut the two Powder Keg for a Wrath of God and a Seal of Cleansing: they appear in only a quarter of lists, so this is barely a concession and saves the most money.
- Cut the fetch lands for Adarkar Wastes and basics: they only thin and fix marginally here.
- Move Masticore out of the board for a second Exalted Angel.
- Keep the cheap core intact: the twelve Urza lands cost a few dollars total, and Decree of Justice, Impulse and Chromatic Sphere are pennies.
- For the mono-white build, drop Abeyance for Renewed Faith and swap Phyrexian Furnace for Tormod's Crypt to land near sixty dollars.
