Goblin Tutors Goblin Matron, Goblin Recruiter, Moggcatcher Goblins have been a force to be reckoned with in Commander for over a decade, traditionally headed by cards like Krenko, Mob Boss to make dangerous swarms or Purphoros, God of the Forge to inflict massive damage to the table in and out of combat, but plenty of other color combinations and strategies are quite viable too
It even throws in the Prismatic Omen text for good measure, which makes it a core part of General Tazri and 5-color ally decks moving forward
Assuming your library doesn't get shuffled after it dies, it'll constantly recur itself from the graveyard and give you the opportunity to cast it at a less expensive level for its miracle cost
trading card game has the benefit of never being subject to rotation like other collectible card games so cards are never made officially obsolete by new expansions thousands of possible card combinations and 20 years of rules and gameplay additions (not to mention rare and expensive cards) means that the game can be intimidating for newcomers to dive into
Reluctant Role Model is also worth looking at
GX cards followed in 2017 during the Sun & Moon era