Its a static ability that pays one generic mana for each artifact tapped using the ability while casting a spell
They may change over time
There are a total of 126+1 card types to collect with the following rarities
These were initially discovered in November 2021 as the bonus card found in foil Phyrexian Praetors: Compleat Edition boxes
Nonetheless, it does seem like anything that draws attention to a particular Pokmon or set can have a knock-on effect on prices, and we should expect the Kanto bunch to be in the spotlight for the next 10 months
At this moment, all that is known is that 2 copies of this card exist, and the last one sold for 2,000. In their post, u/keithf414 wasnt looking to flip their unusual purchase and earn a quick 2,000 ($2,122)