Combo: Trader and Feodum

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Trader / Feodum
Trader.jpg Feodum.jpg
Info
Set(s) Hinterlands / Dark Ages
Type Rush

TraderTrader.jpg and FeodumFeodum.jpg is a combo that uses Trader's SilverSilver.jpg-gaining to beef up the points you get from Feodum.


In general, Trader is a fairly mediocre card. Getting a pile of Silvers is nice, but usually not at the cost of a single expensive card. But with Feodum, you'd much rather have the Silvers. In most kingdoms that feature these 2 cards, the play will be something like the following:

[edit] Purchases (in order)

  • Buy one Trader
  • Buy as many Feoda as possible (get Silver if you only have $3, pass on $2 or less)

When Feodum pile is empty...

  • $8+ = buy Province
  • $4 - $7 = buy Trader (or Duchy if the game will end before you get another reshuffle)
  • Less than $4 = Silver or Estate

[edit] Using Trader

Use Trader on the following (in order of best trade to least):

  • Province (see math below)
  • Feodum (see math below - in a few cases, you wouldn't, but usually, yes... especially early in the game)
  • Estate
  • Trader
  • Silver
  • Copper

[edit] Synergies

  • RatsRats.jpg quickly turns your Coppers and Estates into $4 cards that can be turned into four Silvers each, as well as drawing you a card. This is the only instance where Rats does well with Trader.
  • FortressFortress.jpg can also be useful, as it can be trashed over and over again into Silvers, as well as letting you play more than one Trader per turn.


[edit] Math: Trader on Feodum

When do you want trade a Feodum for 7 Silvers? The mathematical answer is... often!

The formula for the calculation is:

FLOOR((7 + CURRENT_SILVERS) / 3) * (CURRENT_FEODA - 1)) - (FLOOR(CURRENT_SILVERS / 3) * (CURRENT_FEODA) >= 0

And here is a cross-table of that formula. The left side shows how many Feoda are in your deck, the top is how many Silvers. Red values show when it isn't worth it (VP-wise) to trade in your Feodum.

TraderOnFeodum

Bear in mind that this chart only takes into account the VP differential. If there is still a reshuffle or two left before the end of the game, the 7 silvers also provide buying potential. An immediate -1 or -2 VPs could be compensated with a higher probability of making a Province purchase in your reshuffle.

[edit] Math: Trader on Province

The math for understanding when to use Trader on a Province is much simpler:

TraderOnProvince

  • If you have 3 or more Feoda in your deck, DO IT. Adding 8 silvers will always give you at least 6 VPs, and therefore is worth it.
  • If you have only 1 Feodum, DON'T DO IT. Trading a Province will leave you with only 2-3 VPs, a net of -3 or -4.
  • The situation-dependent case is 2 Feoda. 2/3 the time you will receive 6 VPs (net = 0 VPs) and 1/3 of the time 4 VPs (net = -2 VPs). Thus, on the last turn of the game, don't do it. But if you have a reshuffle left, you probably want the buying power of 8 Silvers.

[edit] Math: Trader on Colony

How did you get Colonies in your deck playing Trader/Feodum? Huh, well, here's the math:

TraderOnColony

  • 4 or more Feoda: DO IT
  • 1 or 2 Feoda: DON'T DO IT
  • 3 Feoda: 2/3 of the time you gain 12 (net +2 VPs), 1/3 of the time you gain 9 (net -1 VPs)


Cards $2 CrossroadsCrossroads.jpgDuchessDuchess.jpgFool's GoldFool's Gold.jpg $3 DevelopDevelop.jpgOasisOasis.jpgOracleOracle.jpgSchemeScheme.jpgTunnelTunnel.jpg $4 Jack of All TradesJack of All Trades.jpgNoble BrigandNoble Brigand.jpgNomad CampNomad Camp.jpgSilk RoadSilk Road.jpgSpice MerchantSpice Merchant.jpgTraderTrader.jpg $5 CacheCache.jpgCartographerCartographer.jpgEmbassyEmbassy.jpgHagglerHaggler.jpgHighwayHighway.jpgIll-Gotten GainsIll-Gotten Gains.jpgInnInn.jpgMandarinMandarin.jpgMargraveMargrave.jpgStablesStables.jpg $6 Border VillageBorder Village.jpgFarmlandFarmland.jpg
Combos and Counters Highway/MarketHorn of Plenty/MandarinMint/Fool's GoldNight Watchman/TunnelRebuild/TunnelScheme/ConspiratorStoreroom/TunnelTrader/FeodumTunnel vs Margrave
Other concepts When gain
Cards $0 Ruins (Abandoned MineAbandoned Mine.jpgRuined LibraryRuined Library.jpgRuined MarketRuined Market.jpgRuined VillageRuined Village.jpgSurvivorsSurvivors.jpg) $0star SpoilsSpoils.jpg $1 Poor HousePoor House.jpgShelters (HovelHovel.jpgNecropolisNecropolis.jpgOvergrown EstateOvergrown Estate.jpg) $2 BeggarBeggar.jpgSquireSquire.jpgVagrantVagrant.jpg $3 ForagerForager.jpgHermitHermit.jpg (MadmanMadman.jpg) • Market SquareMarket Square.jpgSageSage.jpgStoreroomStoreroom.jpgUrchinUrchin.jpg (MercenaryMercenary.jpg) $4 ArmoryArmory.jpgDeath CartDeath Cart.jpgFeodumFeodum.jpgFortressFortress.jpgIronmongerIronmonger.jpgMarauderMarauder.jpgProcessionProcession.jpgRatsRats.jpgScavengerScavenger.jpgWandering MinstrelWandering Minstrel.jpg $5 Band of MisfitsBand of Misfits.jpgBandit CampBandit Camp.jpgCatacombsCatacombs.jpgCountCount.jpgCounterfeitCounterfeit.jpgCultistCultist.jpgGraverobberGraverobber.jpgJunk DealerJunk Dealer.jpgKnightsKnights.jpg (Dames AnnaDame Anna.jpgJosephineDame Josephine.jpgMollyDame Molly.jpgNatalieDame Natalie.jpgSylviaDame Sylvia.jpg • Sirs BaileySir Bailey.jpgDestrySir Destry.jpgMartinSir Martin.jpgMichaelSir Michael.jpgVanderSir Vander.jpg) • MysticMystic.jpgPillagePillage.jpgRebuildRebuild.jpgRogueRogue.jpg $6 AltarAltar.jpgHunting GroundsHunting Grounds.jpg
Combos and Counters Apprentice/Market SquareBeggar/GardensBishop/FortressDeath Cart/RatsDonate/Market SquareHermit/Market SquareLurker/Hunting GroundsMasterpiece/FeodumProcession/FortressRebuild/TunnelStoreroom/TunnelTrader/FeodumCultist vs JourneymanFortress vs Knights
Other concepts When trashLooter
Dominion Card Combos and Counters
Combos Alchemist/HerbalistApprentice/Market SquareBaron/InheritanceBeggar/GardensBlack Market/FairgroundsBlack Market/TacticianBishop/FortressCapital/HerbalistCapital/MandarinChancellor/StashCounting House/GolemCounting House/Travelling FairDeath Cart/RatsDonate/DelveDonate/Market SquareDouble TacticianGolden deckGoons/WatchtowerGuide/OutpostHermit/Market SquareHighway/MarketHorn of Plenty/MandarinHorse Traders/DukeHunting Party/Terminal silverIronworks/Great HallKing's Court/BridgeLurker/Hunting GroundsMasquerade pinMasterpiece/FeodumMine/PotionMint/Fool's GoldNative Village/BridgeNight Watchman/TunnelPhilosopher's Stone/HerbalistProcession/FortressRebuild/TunnelRoyal Carriage/BridgeScheme/ConspiratorStonemason/VineyardStoreroom/TunnelTrader/FeodumVault/Grand MarketWarehouse/Counting HouseWorker's Village/PeddlerWorkshop/Gardens
Counters Bishop vs GardensCultist vs JourneymanEmbargo vs PotionFortress vs KnightsGuide vs MilitiaLibrary vs BishopLibrary vs MilitiaLibrary vs RelicLookout vs Sea HagMilitia vs WarehouseMinion vs TreasuryPossession vs AmbassadorPossession vs Merchant GuildSwamp Hag vs GoonsTactician vs Ghost ShipTunnel vs MargraveVault vs AmbassadorWishing Well vs Ghost Ship
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