With so much money to be made, it is no wonder that as the hobby kicked into full gear, so did the efforts to create convincing forgeries
The events in this set took place in the plane of Dominaria during an era where it was frozen solid in an ice age, so the cards and abilities revolved around the frigid experiences of an arctic adventure
It even has random zombie synergies with cards like Liliana's Mastery
(Note: I'll take "Sentences I Never Thought I'd Write In My Lifetime" for $1000, Alex.) We also need to generally understand that this technique doesn't work in every format, because sets are created with different power levels at different times for different reasons, and even THEN mistakes are made and overpowered mechanics/sets can dominate eras in a way that's difficult to quantify in pure comparison...looking at you, Affinity/Infect
This is also pretty much the only monarch card that can retrigger without a flicker effect or something
Not just that, but with so many of the highest placing Gardevoir ex decks playing Jellicent ex, they were unintentionally choosing to play the Gardevoir ex deck with the worst matchup into N's Zoroark ex, setting up the perfect storm for Liam's success
