It was called "DiM Card GP Volume 01: Digimon Tamers," not "Digimon Tamers Volume 01." Even if the line continued the next one might've been Savers or Xros Wars-themed or whatever
I can't fathom what purpose such a device could have

Provided Decklist: Monsters: 31 ||| Blaster, Dragon Ruler of Infernos | Pile Armed Dragon | Armed Dragon Thunder LV7 ||| Tidal, Dragon Ruler of Waterfalls ||| Tempest, Dragon Ruler of Storms | Nowru Aries the Vernal Dragon ||| Redox, Dragon Ruler of Boulders | Amorphage Sloth | Armed Dragon Thunder LV5 | Koaki Meiru Drago | Reactan, Dragon Ruler of Pebbles || Stream, Dragon Ruler of Droplets | Roxrose Dragon | Knight Armed Dragon, the Armored Knight Dragon | Red Rose Dragon | Burner, Dragon Ruler of Sparks | Lightning, Dragon Ruler of Drafts || Nebulous, Dragon Ruler of Shadows ||| Spector, Dragon Ruler of Rays Spells: 6 | Gold Sarcophagus | Foolish Burial | Sangen Kaimen | Basal Rose Shoot || Dragocalamity Traps: 3 ||| Infinite Impermanence Extra Deck: | Bystial Dis Pater | Ruddy Rose Dragon | Arms of Genex Return Zero | Swordsoul Supreme Sovereign Chengying || Chasmatis, Dragon Ruler of Auroras | Blaze, Supreme Ruler of all Dragons || Eclepsis, Dragon Ruler of Woes | Mecha Phantom Beast Dracossack | Disaster, Dragon Ruler of Paranormalities | Salamangreat Raging Phoenix | Promethean Princess, Bestower of Flames | S:P Little Knight | Hieratic Seal of the Heavenly Spheres Note: This is continuing the style of Creative Deck Profile articles, designed to showcase a build through replays and an attached summary

Yuguito shows price changes over time daily and weekly gains and losses so you can see exactly how your cards and overall collection value evolve
Strong Ken, which has the same demerit and limit on the number of times it can be activated, does not require any cost and does not spoil easily