If you must have an answer right away, yes the mastery pass is worth it, though how often you play affects how much value the pass has for you
Lauren Bond, Senior Worldbuilding Designer: While the mechanics of these cards came first, as worldbuilders we often look to common cards (especially cycles) as a place to showcase key elements of setting as players will see them frequently in drafts
Cards that let you take an extra turn are very powerful because they let you play twice, which means you naturally draw two cards and play two lands over two turns while your opponent doesnt get to play at all
Coercive Portal Coercive Portal is a weird case: a card that seems designed with multiplayer in mind, but one thats great in 1v1 since you're guaranteed one free draw per turn if you want (since homage wins if it's a tie)
It supports external regulators, has quick emulation speed, and has adjustable controls
In Commander, theres so many things to get, including nonsense like Looming Spires, okay stuff like the Streets of New Capenna fetchlands for two landfall triggers, and good stuff like Field of the Dead