in some way. For example, a given Constellation might confer an additional power to the Neopets in play, or otherwise might change the game in some fashion. Wizards of the Coast has not given any official rules regarding how constellation cards are to be played in the game, but popular rule sets online (most notably in player-created "guilds" on the Neopets website) considered them similar to Magic's enchantments and thus keep them in play when they are played. Expansions The Neopets Trading Card Game has seen a series of expansions, with each release including new cards and in many cases, new categories of cards. Only three Neopets species did not make it into the TCG, as produced by Wizards of the Coast: Gnorbu, Ogrin, and Xweetok. Checklists can be accessed if players have a Neopets user account. Base set The first Neopets card set was simply an introductory 234-card set, with no prevailing theme whatsoever. This set introduced the card types Basic Neopet, Experienced Neopet, Hero, Villain, Item, Equipment, and "Something Has Happened!". The Basic Neopet types that were introduced were Aishas, Korbats, Myncis, Scorchios, Shoyrus, Kacheeks, Acaras, Lupes, Wockies, Poogles, Eyries, and Grarrls. Battle For Meridell This expansion's release was coordinated with an online plot/war, which was set in the virtual feudal-themed land of Meridell. Thus, the 140 cards in this set were designed with a Middle Ages-like style. This expansion introduced ten new species of Neopets, (Basic Type: Blumaroo, Draik, Gelert, Ixi, Meerca, Quiggle, Skeith, Uni, Usul, and Zafara) in addition to the Location card type. The Return of Dr. Sloth Intending to be tied into an online plot, this set was released in 2004 & the online tie-in was delayed until early 2008 due to workload. This set totaled 100 cards. This expansion's theme was space, providing players with futuristic and robotic items and equipment. Six new Neopet species made their debut in this expansion (Basic Type: Cybunny, Grundo, Jetsam, Jubjub, and Kougra). Mystery Island Based upon a tropical island locale, this 100-card expansion provided no new card types, but did introduce four new Neopet species, including the Pteri and Techo (other Basic Type: Krawk and Peophin). The related plot was the Secret of the Volcano mystery plot in Fall 2003, but the plot and the expansion were not released together. Hannah and the Ice Caves Revolving around a central popular game character known as Hannah the