While not quite evergreen, its appeared in multiple blocks across Magics history, including Urzas Saga , Onslaught , Time Spiral , the Alara block, Modern Horizons , Ikoria: Lair of Behemoths , and the Amonkhet block
Like anything else we discuss, playing with or for two-for-ones is just a tool
Some of these guys are complete TCG amateurs, some are proper Pokemon TCG veterans, and others know their way around a deck of Magic or Divorced Dads
If you are not super comfortable with that just yet, you will want to identify what exactly your decks goal is before you begin building
Illuminor SzerasIlluminor Szeras sacrifices creatures to make mana, which can help you get to some of the awesome high cost cards in the deck a bit sooner, but may stumble if you can't find card advantage to make up for the things you're sacrificing and ramping out