pokémon card set checklane HS Base Blastoise Blister along with a collectible coin and an adorable Whooper promo card Scarlet & Violet Premium Checklane

Here we have individual parts specified in detail

If a replacement effect causes the milled cards to be exiled instead of going to the graveyard, this effect can still apply to the cards "milled this way" in exile

When the sheet of cards to be foil stamped is fed into the foil embossing machine upside down or misaligned, an error like those seen on the two Clefables above can occur

Smugglers Copter would probably have to leave as a result

Furthermore it gives a better chance to have four mana on turn three, which means you can cast Sam and have mana to sacrifice a food token so Frodo can start being tempted by the Ring right away

But things really took off in 2023 when one of these cards was finally graded, skyrocketing its value, that too for an error card like this one