It just allows for an alternate cost to be paid
And people love playing multi-colored spells decks, which weve already seen with popular commanders like Ramos, Dragon Engine and Niv-Mizzet Reborn
You can play explore cards that let you hit your land drops more efficiently, it helps to play 3+ colors or expensive spells, it sets your graveyard for shenanigans, and much more
You could consider the behavior of committing crime as evergreen (can you imagine an MTG set with no cards that target your opponents or their things?), but the keyword action itself isnt evergreen
Whenever a creature dies, untap this creature
You cant catch them all unless you have the money , make some decent trades, or are extremely lucky opening booster packs