Every card has a set it belongs to, the numbering is built in, and it maps directly to how the TCG is actually structured
Agent's Toolkit Alchemist's Vial Altar of the Wretched Architects of Will Arcum's Astrolabe Assassin Gauntlet Autograph Book Baleful Strix Barbed Servitor Bladecoil Serpent Blood Fountain Blood Servitor Bomat Bazaar Barge Brass's Tunnel-Grinder Buzzing Whack-a-Doodle Candy Trail Canoptek Spyder Circuit Mender Clockwork Servant Combat Thresher Cryogen Relic Detective's Satchel Detention Chariot Dragon's Hoard Dungeoneer's Pack Elsewhere Flask Energy Refractor Eye of Vecna Filigree Familiar Five Hundred Year Diary Glassdust Hulk Gleaming Geardrake Glimmer Lens Golden Egg Guild Globe H.E.R.B.I.E
Special Guests Special Guests cards bring pieces of the Multiverse together, with artwork and flavor themed around their set
Each deck was capable of being the archenemy or being on the hero team
It represents a massive mana boost on turn 3, if you had a turn-1 dork its mana neutral, and they stack beautifully
Pokmon's latest mobile game, Pokmon TCG Pocket has brought a huge amount of fans new and old to the TCG which I would say is one of the main reasons for the hype in general