A confluence of factors led to this, spearheaded by celebrities and influencers like Logan Paul, who make news for their latest high-profile sales and trades
Just like the Drednaw from 4th position, the Gardevoir Vmax also got a bump in price and rarity once it went rainbow in the Champions path expansion
There are instants and sorceries that use domain to determine the magnitude of their effects
Pilgrim's Eye is a decent value creature that should see play in all but the most aggressive decks
Thats different from the thought of Should WotC stop printing foil cards entirely? A lot of this comes down to marketing, perceived value, and collectibility
I mostly picked Elf cards that had some utility like Radha, Heart of Keld and Glissa Sunseeker, or specifically benefited from getting +1/+1 counters like Incubation Druid and Gyre Sage