42 cards where the set is “ddu” and the collector number >= 35

Artificer's Epiphany (Duel Decks: Elves vs. Inventors #36)
Barrage Ogre (Duel Decks: Elves vs. Inventors #44)
Darksteel Citadel (Duel Decks: Elves vs. Inventors #65)
Darksteel Plate (Duel Decks: Elves vs. Inventors #52)
Etherium Sculptor (Duel Decks: Elves vs. Inventors #37)
Faerie Mechanist (Duel Decks: Elves vs. Inventors #38)
Filigree Familiar (Duel Decks: Elves vs. Inventors #53)
Foundry of the Consuls (Duel Decks: Elves vs. Inventors #66)
Galvanic Blast (Duel Decks: Elves vs. Inventors #45)
Ghirapur Gearcrafter (Duel Decks: Elves vs. Inventors #46)
Goblin Welder (Duel Decks: Elves vs. Inventors #35)
Great Furnace (Duel Decks: Elves vs. Inventors #67)
Ichor Wellspring (Duel Decks: Elves vs. Inventors #54)
Inventor's Goggles (Duel Decks: Elves vs. Inventors #55)
Island (Duel Decks: Elves vs. Inventors #73)
Island (Duel Decks: Elves vs. Inventors #74)
Maverick Thopterist (Duel Decks: Elves vs. Inventors #50)
Mountain (Duel Decks: Elves vs. Inventors #75)
Mountain (Duel Decks: Elves vs. Inventors #76)
Mycosynth Wellspring (Duel Decks: Elves vs. Inventors #56)
Myr Battlesphere (Duel Decks: Elves vs. Inventors #57)
Myr Sire (Duel Decks: Elves vs. Inventors #58)
Neurok Replica (Duel Decks: Elves vs. Inventors #59)
Phyrexia's Core (Duel Decks: Elves vs. Inventors #68)
Pia and Kiran Nalaar (Duel Decks: Elves vs. Inventors #47)
Pyrite Spellbomb (Duel Decks: Elves vs. Inventors #60)
Reclusive Artificer (Duel Decks: Elves vs. Inventors #51)
Riddlesmith (Duel Decks: Elves vs. Inventors #39)
Scuttling Doom Engine (Duel Decks: Elves vs. Inventors #61)
Seat of the Synod (Duel Decks: Elves vs. Inventors #69)
Shivan Reef (Duel Decks: Elves vs. Inventors #70)
Shrapnel Blast (Duel Decks: Elves vs. Inventors #48)
Solemn Simulacrum (Duel Decks: Elves vs. Inventors #62)
Swiftwater Cliffs (Duel Decks: Elves vs. Inventors #71)
Temple of Epiphany (Duel Decks: Elves vs. Inventors #72)
Thopter Assembly (Duel Decks: Elves vs. Inventors #63)
Treasure Mage (Duel Decks: Elves vs. Inventors #40)
Trinket Mage (Duel Decks: Elves vs. Inventors #41)
Trophy Mage (Duel Decks: Elves vs. Inventors #42)
Voyager Staff (Duel Decks: Elves vs. Inventors #64)
Welding Sparks (Duel Decks: Elves vs. Inventors #49)
Whirler Rogue (Duel Decks: Elves vs. Inventors #43)

Though this query has ended, its relics still slumber in New Argive.