In the most egregious cases, it does both
In order to get a sneak peak at future promo cards go to the tradable cards section in the trade menu (click on the question mark in the upper right corner)if you head to the promo section for series B you can see future promos as of writing this is saw mega medichan ex (hasent been released yet) and chansy pick promo cinderace and chansy pick promo alohlan vulpix See more
At the time of writing, this Shiny Rare Pikachu is listed on TCGPlayer for $70.00 USD , though no market value has been gathered yet
Still, this is powerful, and Ive been wrong at least once before
This monster does not appear in the TCG, so it doesnt have any particular history within the games meta
If you want to try the PriceCharting scraper from this guide, ScrapingBee's free trial includes 1,000 credits, enough to pull prices across a full vintage set