Azurite Sea saw artworks that leaned into a highly unique theme, with characters from the main set etched against a map-like backdrop, to keep in lockstep with the seafaring theming
That said, Jeskai has diversified over the years, and there are many other ways to build your decks around different themes, such as convoke, tokens, and Voltron, among others
There is a triggered ability here too - when it or another non-token Shrine ETBs you make a free 1/1 token Shrine that's colorless
If this happens, the price of Equinox could absolutely skyrocket since there are so few copies available
These spells are cheap and flexible, and they often trade up in mana
Being able to upgrade the deck with Terminal Agony and Necrogoyf in the last few years is notable for sure, but I think a lot of Anjes appeal could definitely be rooted in the comfort players can take in having a deck with a clear purpose and not a lot of required attention as new sets roll out