Only $1 extra per card to ship your 2nd card and beyond
However, the version of the card with the same art from the Legendary Collection tends to pull in a more modest sum
Side Note: the reason why I chose to only run 2 Swallow's Slashes instead of 3 was because a) I'd found that 45 was a good deck size, with an 85% chance of opening with a play that would lead into the minimum of Fraulein or Samuraisaga, so to add a third copy would mean either dropping Trinities or bumping up to 50 b) Swallow's Slash requires a Shiranui monster in your deck to be banished, so while running multiple copies would be good, they would typically lose their usefulness as the duel would go on due to not always having Shiranuis in the deck to be able to resolve it
This category tends to include most combat tricks and most serviceable creatures (combat tricks always compete for space with creatures and removal, so I rate them lower), as well as cards that can be strong out of the sideboard
My tip is pick Pokmon of one type. So, say, Electric, or Dark, or Psychic
Set Contents Monster Volcanic Shell N3 Volcanic Rocket N3 Volcanic Doomfire N1 Volcanic Scattershot N3 Volcanic Emperor UR2 Volcanic Trooper SR3 Volcanic Rimfire R3 Volcanic Queen N1 Awakening of the Possessed - Large Inari Fire SR1 Fire Medium Heater UR1 Magic Volcanic Blaze Accelerator SR3 Moltres Ejection R2 Blaze Accelerator N2 Moltres Buck R1 Oil Mining N1 Foolish Burial N1 Foolish Burial Goods N2 Traps Volcanic Emission SR1 Volcanic Inferno R1 Blaze Accelerator Reload N2 Fire Lich - "Red" N1 EX Hiita the Fire Charmer, Ablaze N1 Salamangreat Sunlight Wolf N2 Salamangreat Almiraj SR1 Selene, Queen of the Master Magicians SR1 Mekk-Knight Crusadia Avramax SR1 Knightmare Cerberus N1 Knightmare Phoenix N1 Relinquished Anima N1 Linkuriboh N1 Accesscode Talker NP1 Decode Talker Heat Soul SR1 Duelittle Chimera N1 Hellflame Banshee R1 #Volcanic Cannon