Precon upgrade guide · Star Trek Commander

Klingon Fury precon upgrade guide

Seventeen cards in this box do something when you attack, Worf’s own ability among them. The best upgrade is a three-mana legend that makes all seventeen do it twice.

Battlefront, the ability on Worf, Defiant Commander, exiles the top card of your library for each opponent you attacked this turn, and you can play what it exiles until the end of your next turn. It counts players, not creatures, so a single attacker at each of three opponents is worth three cards. The box sets that up well. Worf brings a 2/1 Klingon with haste, Rite of Ascension makes an attacking token for every opponent you went at, and Koloth, Tribble Hunter hands you two goaded Tribbles at each of your end steps, which have to attack anyway.

What it lacks is anything that multiplies those triggers. It also spends four slots on cards that work against a deck that attacks every turn: two sweepers that destroy your own tokens, and two Klingons that make every opponent draw a card alongside you.

Best Klingon Fury upgrades, in buying order

Start at the top if you’re buying a few at a time. All twelve are already out, unlike Worf and the other 33 new Star Trek cards in the box, which release on 13 November 2026, so each price here is TCGplayer’s for the cheapest released printing, on 29 October 2026. Hovering a name shows the card.

1. Isshin, Two Heavens as One and Windcrag Siege (~$3.88 and ~$0.31). Both print the same rule: when a creature attacking makes an ability of yours trigger, that ability triggers one more time. Battlefront is one of those abilities, so at a table of four Worf exiles six cards a combat instead of three. Nineteen other cards in the upgraded list trigger the same way, and the next section goes through them. The two stack, so with both out it’s nine cards. Choose Mardu as the Siege enters. It also survives the creature sweepers that take Isshin, and it costs only red and white.
2. Karlach, Fury of Avernus (~$16.30). When you attack in the first combat of a turn, Karlach untaps your attackers, gives them first strike and adds a second combat. Battlefront counts the opponents you attacked this turn, not this combat, so attacking anyone at all in that second combat exiles three more cards. With Isshin out Karlach triggers twice as well, for two extra combats. Your whole team gets the first of them, and the third is for anything with vigilance, which I.K.S. Negh'Var gives every Klingon and Warrior.
3. Mishra, Claimed by Gix (~$6.84). Whenever you attack, each opponent loses life equal to the number of creatures attacking, and you gain the same. Six attackers is 6 from every opponent before blockers, 12 with Isshin, and it goes again in each extra combat.
4. Hellrider (~$0.51). Whenever a creature of yours attacks, Hellrider deals 1 damage to the player it’s attacking, as soon as attackers are declared. That makes the 2/1 sent at the third opponent worth sending even when it’s going to be blocked, and Isshin makes it 2 a creature.
5. Tymna the Weaver (~$10.05). In your postcombat main phase you may pay 1 life for each opponent dealt combat damage this turn and draw that many cards. Getting damage through to every opponent is the attack Battlefront already asks for, and these cards stay in your hand, where Battlefront’s are only playable until the end of your next turn.
6. Kargan Warleader (~$0.19). Other Warriors you control get +1/+1. Every token the deck makes, Koloth’s Tribbles aside, is a Klingon Warrior, so the 2/1s arrive as 3/2s, and fifteen other creature cards in the list are Warriors too, Worf among them.
7. Laelia, the Blade Reforged (~$0.33). A three-mana Warrior with haste that exiles your top card each time it attacks, playable that turn. It also takes a +1/+1 counter whenever cards go from your library to exile, which is what Battlefront does, so with Worf out Laelia grows on every attack you make, whether it’s in the attack or not.
8. Swords to Plowshares (~$1.08). One mana to exile a creature. It takes the slot of Return to Dust, which wants two white and only answers artifacts and enchantments, and beside Path to Exile and Terminate it makes three answers that cost two or less and hit any creature.
9. Spectator Seating, Luxury Suite and Sulfurous Springs (~$4.66, ~$8.35 and ~$0.43). Duals that come in untapped, the first two while you have two or more opponents and the Springs always, for 1 damage when it taps for a colour. They replace three lands that never do. Vault of Champions, already in the box, is the white and black land from the same cycle as the Seating and the Suite.

Past the twelve, Sacred Foundry (~$10.17) and Blood Crypt (~$9.04) are the step up from the Seating and the Suite once the table is down to two players, which is when those two start entering tapped. Both are reprinted in the Star Trek main set on 13 November 2026, the day this deck comes out, so I’d wait to see where their prices settle.

Aurelia, the Warleader (~$2.78) is the other repeatable extra combat, and cheaper than Karlach. It costs six, though, with two red and two white in it, and five spells in the list already ask for two red, so I went with the five-mana one.

Seventeen cards in the box trigger on an attack

Battlefront is printed on eight of the box’s cards, and six of them trigger when you or they attack, each counting the opponents you attacked. Worf exiles that many cards. Martok, Hero of the Empire puts a +1/+1 counter on that many of your creatures, Korok, Liberated Rage gives the team +1/+1 for each, Kurn, Son of Mogh draws you that many, Galvanizing Tenor goads that many creatures and Rite of Ascension makes that many 2/1 Klingons already attacking. The other two aren’t triggers: The Beacon of Kahless taps for that much mana of one colour, and Own the Day costs that much less.

Eleven more trigger on an attack without the Battlefront name. Kor, Cause of Vengeance lets you sacrifice a creature to draw a card and give your Klingons and Warriors +2/+2. Qo'noS Quartermaster adds a mana that lasts the whole turn. Kang, Suspicious Captain puts a +1/+1 counter on one of your creatures whenever goaded creatures attack, on anyone’s turn, and Duelist’s Heritage gives an attacker double strike. Imperial Hullbreachers has battle cry, Ferocious Colonist has melee, Glory to the Empire! gives every creature you control melee, and Shared Animosity, The Sword of Kahless, K't'inga-Class Battle Cruiser and Gnarling Targ each have something that fires on the attack too.

Isshin and Windcrag Siege each double all of it. The upgrade keeps sixteen of the seventeen (Gnarling Targ is the one that leaves) and brings four of its own in Karlach, Mishra, Hellrider and Laelia, so twenty cards in the list pay twice per attack, and three times with both doublers out. Four of the doubled triggers are worth working through.

• Melee gives a creature +1/+1 for each opponent you attacked this combat. Attack all three with Glory to the Empire! out and every attacker gets +3/+3, or +6/+6 with Isshin.
• Rite of Ascension makes six attacking tokens instead of three. They enter already attacking, so they never trigger Hellrider or anything else that reads “attacks”, but Mishra counts every attacking creature as his trigger resolves. Put his trigger on the stack before the Rite’s and it resolves after them, with the tokens counted.
• Kurn draws three and loses 3 life, twice over: six cards for 6 life. Nothing about it is optional once he attacks, so at low life leave him at home.
• Duelist’s Heritage gives double strike to two attackers instead of one, and each trigger picks its own target.

Battlefront counts the turn, so an extra combat pays in full

The box carries three ways to attack twice in a turn: Combat Celebrant, Own the Day and World at War, with Karlach a fourth after the swaps. In a second combat, attacking any player at all sets Battlefront off again, and X is still every opponent you attacked earlier that turn. So the second attack can be one token at the weakest player and still exile three cards. Melee is the exception, because it counts this combat, and only pays for the opponents attacked in that one.

Where you can spend the cards depends on which card made the combat. Own the Day and World at War each add a main phase after their combat, so you can cast what Worf exiled between attacks. Karlach and Combat Celebrant don’t. Their extra combat follows straight on from the first, and everything exiled waits for your postcombat main phase or the next turn. Either way it’s playable until the end of your next turn.

Own the Day costs one less for each opponent you attacked, so after a full attack it costs three, two of them red. The mana for the rest comes off the same attack. The Beacon of Kahless taps for three of one colour once you’ve gone at all three opponents, Qo'noS Quartermaster’s mana doesn’t empty between phases (two of it with Isshin), and Professional Face-Breaker makes a Treasure when your creatures connect and lets you sacrifice one to exile another card you can play that turn.

Pest Control kills every token this deck makes

Pest Control destroys each nonland permanent with mana value 1 or less, and a token’s mana value is 0. Cast it here and you lose every 2/1 Klingon you’ve made, Koloth’s Tribbles, any Treasure from Professional Face-Breaker and your Sol Ring, which is most of what the deck spends its turns building. Vanquish the Horde gets one cheaper for each creature on the battlefield, so it’s cheapest when your board is biggest, and then it destroys all of it.

That leaves one sweeper, Ruinous Ultimatum, and it only destroys what your opponents control. It costs seven, with three white, two red and two black. One reset is few for a Commander deck, and I’m fine with it here: a deck that wins by attacking every turn needs answers to the one creature in the way, and Sins of the Father, Chancellor Gorkon and the spot removal cover that.

Ambassador K'Ehleyr and Alexander, Ship's Fool both make every player draw. K'Ehleyr does it at the start of combat on your turn, so each opponent picks up a card just before you attack them, and an instant drawn there can be cast during that combat. Alexander taps for the same draw, with a random burn on top. Either way it’s three cards to the table for each one you get. Tymna the Weaver takes the slot, because she only draws for you, and draws more the wider you spread the attack.

Grilka, Widowed Warrior, Cha'DIch Investigator and Gnarling Targ cost five or six, and each does one thing. Grilka borrows a creature for a turn, the Investigator is a 4/4 with a 2/1 token, and the Targ gives Klingons and Warriors +2/+0 and trample on the attack. Karlach costs what the Targ does and gives every attack trigger in the deck a second combat to fire in. Most of what comes in costs three (Isshin, Tymna, Kargan Warleader and Laelia, plus Windcrag Siege), which takes the average mana value from 3.44 to 3.25 and the cards costing five or more from twelve to eight.

Return to Dust wants two white and hits only artifacts and enchantments, so Swords to Plowshares takes its slot. Vindicate and Rite of Oblivion still answer any nonland permanent. Sword of Light and Shadow gives one creature +2/+2 and protection from white and black. Kargan Warleader gives every other Warrior +1/+1, tokens included, for the same three mana and nothing to equip.

Five of the new creatures aren’t Klingons or Warriors

Twenty-three of the box’s 24 creatures are a Klingon, a Warrior or both, Gnarling Targ being the odd one out. After the swaps it’s 21 of 26, because Isshin, Karlach, Mishra, Hellrider and Tymna are none of those. Eight cards in the list name Klingons and Warriors: Kor’s +2/+2, the vigilance from I.K.S. Negh'Var, Imperial Flagship, the flying from K't'inga-Class Battle Cruiser, Gagh Slinger’s discount and its ping when one enters, Indelicate Healer’s lifelink trigger, Curzon Dax’s ping when one dies, The Promise of Kahless bringing them back and The Sword of Kahless finding one. The five don’t count for any of those.

I’d still make the trade. Each of the five multiplies the Klingons’ own triggers or cashes them in: Isshin doubles them, Karlach repeats them, Mishra and Hellrider turn every attacker into damage, and Tymna turns the ones that connect into cards. And none of the five has to attack to do it. Isshin and Mishra work from the back row, Hellrider counts other creatures’ attacks, Karlach’s trigger is yours whether Karlach swings or not, and Tymna needs only that someone connected. That matters because I.K.S. Negh'Var’s vigilance skips them, so they’re the creatures to leave home as blockers.

Herald’s Horn is the one card that makes you pick. It discounts creature spells of the type you name, and at each upkeep it puts the top card of your library into your hand if that card is a creature of the type. After the swaps it’s a tie, 15 Klingons and 15 Warriors in the 99, and Worf in the command zone is both. Naming Klingon covers Korok, Voq, Ferocious Colonist, Galvanizing Tenor and Chancellor Gorkon. Naming Warrior covers Curzon Dax, Combat Celebrant, Professional Face-Breaker, Kargan Warleader and Laelia. I’d name Warrior, because Kargan Warleader pumps every Warrior the Horn finds, and nothing else in the list rewards a Klingon that isn’t also a Warrior.

Shared Animosity doesn’t mind either way. It counts any shared creature type, and Isshin, Mishra and Tymna are Human, like Kargan Warleader, Combat Celebrant and Professional Face-Breaker.

The box already covers the swing back

Sending something at every opponent each turn makes three enemies, and all three take a turn before you take another. The box has the cards for that, which is why I didn’t spend a slot on protection. Teferi’s Protection (~$37.61) is the usual buy, and it’s a Game Changer, which would make the upgraded list a Bracket 3 deck on that card alone.

I.K.S. Negh'Var, Imperial Flagship is the one to cast early. For three mana your Klingons and Warriors have vigilance, so they attack and still block, and after combat they’re untapped to station the deck’s three Spacecraft, the Negh'Var among them. Merciful Mandate untaps all your creatures for two mana at instant speed. Cast after combat damage on your own turn, it stands your attackers back up as blockers. On an opponent’s turn it can end the combat phase instead, which takes every attacker out of combat before damage.

Right of Vengeance destroys each creature that deals combat damage to you until end of turn, and gives you a 2/1 Klingon with haste for each. Disrupt Decorum goads every creature you don’t control, so until your next turn they have to attack someone other than you if they can. Anything that does is still tapped when your turn comes round, which clears the blockers for your next attack too.

Koloth, Tribble Hunter adds to it at every end step of yours. Each player gets two Tribbles that can’t block, and every Tribble is goaded, so the opponents’ Tribbles have to attack someone other than you if they can, and Kang, Suspicious Captain puts a +1/+1 counter on one of your creatures each time goaded creatures attack.

If a sweeper does land, The Promise of Kahless returns every Klingon and Warrior creature card from your graveyard for five mana. It needs one Klingon or Warrior on the battlefield to sacrifice, so cast a cheap one first. Lightning Greaves stays for the commander, too. Worf doesn’t need to attack for Battlefront, so the shroud matters more than the haste, and with equip at zero it can move to Isshin the turn Isshin lands.

Six lands that always enter tapped, down to three

The box runs 38 lands, 15 of them basics, and six always enter tapped: Temple of Malice, Nomad Outpost, Path of Ancestry and three cycling duals. In a deck that wants an attacker for each opponent as early as it can manage, the first three go. Spectator Seating and Luxury Suite enter untapped while you have two or more opponents, and Sulfurous Springs always does.

The cycling duals (Canyon Slough, Glittering Massif and Umbral Expanse) stay. They’re slow on turn two, and on turn ten each one is a card for two mana. Most of the rest check for a land type, two basics or a card in hand, and the box’s 15 basics feed all three checks.

Red stays at 27 sources. White and black drop from 27 to 26, because Nomad Outpost and Path of Ancestry made all three colours and the lands replacing them make two. Red is the colour to protect: five spells in the list want two red mana (Disrupt Decorum and Hellrider at four, World at War, Own the Day and Ruinous Ultimatum), and on the play the list has two red sources by turn four about 82% of the time, the same as the box. Double white goes the other way, from four spells to two, Concerted Effort and the Ultimatum, once Return to Dust and Vanquish the Horde leave.

I kept the land count at 38. The curve comes down to 3.25, but Battlefront keeps handing you spells to cast this turn or next on top of the ones in your hand, and five of the deck’s eight ramp pieces are two-mana rocks.

The upgraded decklist

All 100 cards of the upgraded list by card type, the Star Trek ones in the printings the box ships. Point at a name to see the card.

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FAQ

Does Isshin double Worf, Defiant Commander’s Battlefront?

Yes. Battlefront triggers whenever you attack, which is an ability set off by creatures attacking, and that’s what Isshin, Two Heavens as One doubles. Each instance counts the opponents you attacked as it resolves, so at a table of four with all three attacked Worf exiles six cards, and nine with Windcrag Siege set to Mardu as well.

What happens to Battlefront in a second combat?

It triggers again as soon as you attack, and X is still the number of opponents you attacked this turn, the first combat included. Send one creature at one player in the second combat and it exiles three cards, as long as you went at all three earlier. Melee works differently, because it counts only the opponents attacked in that combat.

Can you play a land that Battlefront exiles?

Yes. Battlefront says play, not cast, so a land it exiles can be your land drop. It still uses your one land for the turn, and like everything Battlefront exiles it stays playable only until the end of your next turn, so a second land exiled the same turn can wait for the next one.

How much do the Klingon Fury upgrades cost?

About $52.93 for all twelve at the cheapest released printing of each, on 29 October 2026. Karlach is the dearest at about $16.30 and Tymna the Weaver next at about $10.05, while Kargan Warleader costs 19 cents and Windcrag Siege 31. The 34 new Star Trek cards in the box have no settled prices before release, so this page puts no total on the deck itself.

Klingon or Warrior: which type should Herald’s Horn name?

Warrior, in the upgraded list. It’s a tie at 15 of each in the 99, so the choice is which five you’d rather find: Korok, Voq, Ferocious Colonist, Galvanizing Tenor and Chancellor Gorkon on the Klingon side, or Curzon Dax, Combat Celebrant, Professional Face-Breaker, Kargan Warleader and Laelia on the Warrior side. Kargan Warleader pumps Warriors, and nothing in the list rewards a Klingon that isn’t also a Warrior. In the box as shipped, name Klingon: it’s 19 Klingons to 15 Warriors there.

Should Isshin, Two Heavens as One lead this deck instead of Worf?

I’d keep Worf. In the command zone Battlefront is there every game, and it’s the card flow the whole list runs on. With Isshin leading, every attack trigger doubles from turn three, but the deck only gets Battlefront in the games it draws Worf, and apart from him only Kurn and Tymna turn one attack into three cards, each at a life a card.