Any card at Rare Holo rarity or lower can also come with a “Reverse Holo.” These cards are foil on every part of the card except the illustration. This only changes the physical appearance of the card and does not change its rarity or collector card number.
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Holofoil Rare cards have a black star as well, but the card art includes a Holofoil design. These cards are easy to spot as they have a shiny holo picture on them. Very few Rare Pokémon cards in a set are made with holo variants, so they are often sought by collectors and can end up being worth a lot of money. Reverse Holo Pokémon cards that are holographic on the non-art part of the cards also exist, even at the Common and Uncommon rarity levels.
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I can also personally confirm as an avid card collector, Holos are few and far between and only for Rares, and reverse holos are much more common and for every rare and lower.
