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.jpgFool's GoldFool's Gold.jpg $3 DevelopDevelop.jpgGuard DogGuard Dog.jpgOasisOasis.jpgSchemeScheme.jpgTunnelTunnel.jpg $4 Jack of All TradesJack of All Trades.jpgNomadsNomads.jpgSpice MerchantSpice Merchant.jpgTraderTrader.jpgTrailTrail.jpgWeaverWeaver.jpg $5 BerserkerBerserker.jpgCartographerCartographer.jpgCauldronCauldron.jpgHagglerHaggler.jpgHighwayHighway.jpgInnInn.jpgMargraveMargrave.jpgSoukSouk.jpgStablesStables.jpgWheelwrightWheelwright.jpgWitch's HutWitch's Hut.jpg $6 Border VillageBorder Village.jpgFarmlandFarmland.jpg
Removed cards $2 DuchessDuchess.jpg $3 OracleOracle.jpg $4 Noble BrigandNoble Brigand.jpgNomad CampNomad Camp.jpgSilk RoadSilk Road.jpg $5 CacheCache.jpgEmbassyEmbassy.jpgIll-Gotten GainsIll-Gotten Gains.jpgMandarinMandarin.jpg
Combos and Counters Trader/Feodum
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/FortressDonate/Market SquareHermit/Market SquareLurker/Hunting GroundsMasterpiece/FeodumProcession/FortressTrader/Feodum
Other concepts When trashLooter
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Apprentice/Market SquareBeggar/GardensBlack Market/TacticianBishop/FortressCapital/HerbalistCapital/MandarinCounting House/Travelling FairDonate/Market SquareGolden deckHermit/Market SquareLurker/Hunting GroundsMasquerade pinMasterpiece/FeodumNative Village/BridgeProcession/FortressRoyal Carriage/BridgeTrader/FeodumWorkshop/Gardens
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