I did this tally by searching on Scryfall with a year:20xy query (which provides all cards printed that year) do note that for 2023, we only have partial results: So, Fact #1 : Card output started to ramp up in 2019, saw a huge spike in 2022, and by August 2023 we've already seen more cards than any whole year prior to 2019
As of Feb
Lets do a little recap on first time foils
10 Golem Holofoil Secret Rare Market Price: $231.29 One of the most notable traits of some of these Skyridge cards is that several of them are Crystal Type, which was a subtype introduced in the set that made mons that would normally be a certain type into Normal types, with the twist being that its type changed depending on what energy you attached to it
While most of the back faces are artifacts, three of the Mythics have other permanent types on the back: Alrund's back face is Hakka, a blue bird creature
It is a fairly unique card, as it too includes the Shift ability but with a twist