Here are all of the artifact subtypes: Clue Equipment Food Gold Treasure Spacecraft Vehicle Contraption: While contraption is an artifact type in the rules, these only exist in the Unstable set
Collecting in the Pokemon Trading Card Game is mostly fed by the the booster packs, but you can also find opportunities to trade with characters in game, the cards featured drawn from the real life Base Set, Jungle, and Fossil card sets as well as some Promotional cards and ones unique to this game
There are lots of interesting ways to build control, as their are a multitude of expensive different many-for-ones they can run, and a multitude of ways to lock up or secure the game
If this card has no Xyz materials, it loses 1000 ATK points
I also think the synergy with Ring cards might be good enough I'd go out of my way to include them