how do you know if your yugioh card is rare well rarities? STARLIGHT RARE

Is it a good card

During your Main Phase: You can Special Summon 1 Ashened monster from your hand, except King of the Ashened City, or if your opponent controls a monster with 2800 or more ATK, you can Special Summon it from your Deck instead

paolins didn't specify the playstyle for this deck

Back before it became so common to run Battle VIP Pass, you used to have to work at getting your board set up, and decks that get really powerful from having a full bench were less likely to get stacked early on

Despite that, multiple Standard strategies with Yorion have been coming out of the woodwork, including Bant Ramp, Four-Color and Esper Fires decks, and even 5-Color Niv-Mizzet