The Pokmon Company engineers pull rates and scarcity tiers to create structured demand across different collector segments
That part is more than worth doing, as is using its ability to get it out of trouble when the combat its swinging into doesn't go the way you expected
You gain bonuses from putting cards into your graveyard if you descend, and then you can use those cards to collect evidence further gaining optional abilities or effects
Playing lots of Locations can produce huge amounts of passive lore gain, enable powerful effects, and synergies
Brisela is a wonderful keyword soup of combat keywords, it counts as your commander for commander damage tracking, and it taxes the board, locking out many combat tricks, counterspells, cantrips, hatebears, and more
My last two choices are so good, they were reprinted in the Doctor Who commander decks, but these cards are originally from Modern Horizons 2 and Amonkhet