My thoughts on these cards are therefore purely as a Magic: The Gathering and Commander format fan
Online I see: Perhaps the most obvious way to tell is if your card is shadowless is if the bottom of the card says "1995, 96, 98, 99 Nintendo Creatures...." If the card has the year "99" at the bottom, then it is shadowless
Kaya, Ghost Assassin (Alternate Art Foil) from Conspiracy: Take the Crown Details Kaya, Ghost Assassin (Alternate Art Foil) is a Mythic Rare in the set Conspiracy: Take the Crown.
Previously, this title was held by The Fourteenth Doctor, which is only selling for $114 right now
You can obtain the Tropius (2-Diamonds rarity) card by opening Everyday Wonders from Everyday Wonders set
If an effect is activated,you can banish 1 DARK monster from your hand to negate the activation and destroy it