Pokmon's own Scarlet and Violet rarity update spells these out: "double rare cards are represented with two solid black stars," and "hyper rare cards will be represented with three shiny gold stars," while the older "solid black symbols for common, uncommon, and rare, circle, diamond, and star, will remain unchanged" (Pokemon.com)
I was getting sick of Jack and Crow, who don't avoid duels
This spell card lets you special summon any Harpie monster from the deck while you control another Harpie monster and what better option to go with than a 1950 attack monster
Its pricey, but a functioning aristocrats deck should have multiple redundant sacrifice-and-draw effects anyway, so its better to think of it as a backup plan in case your hand goes pear-shaped
You'll want to make sure you build your deck so that you can consistently open a way to your win condition