The vast majority of fans who have the E3 promo today actually have the "yellow cheeks" variant which was mass-produced for Nintendo Power magazine
Filigree Familiar looks primarily like a creature to sacrifice to Elder Deep-Fiend, Wretched Gryff, or Distended Mindbender, but I could also imagine people wanting a speed bump early or just wanting an extra artifact for some kind of artifact synergies
Each Pokmon TCG: Scarlet & VioletPaldean Fates Pokmon ex Premium Collection includes: 1 etched foil promo card featuring Shiny Meowscarada ex, Shiny Skeledirge ex, or Shiny Quaquaval ex 1 etched foil promo card featuring Shiny Floragato, Shiny Crocalor, or Shiny Quaxwell 1 etched foil promo card featuring Shiny Sprigatito, Shiny Fuecoco, or Shiny Quaxly 1 oversize foil card featuring Shiny Meowscarada ex, Shiny Skeledirge ex, or Shiny Quaquaval ex 8 Pokmon TCG: Scarlet & VioletPaldean Fates booster packs 1 magnetic 3-card protector with base A code card for Pokmon TCG Live
In terms of its usage in battle, the Penny card is also incredibly valuable
Mega Pinsir Emblem Regular Mega Rising Themed Collections As always, the Mega Rising expansion has plenty of regular themed collections, all of which can be checked via the in-game missions menu
