As a regular disclaimer in any M:TG article I do
Mechanically, Terra is a fascinating card, using the mill mechanic of Black decks while still allowing players to build into the burst power of Red and creature-creation of White
Lord of the Pit (Alpha Edition) $105,000 BGS Pristine 10 Why It's Valuable: One of the most feared monsters in early Magic
How about cards that have half of a mana symbol such as Little Girl
If you don't have any ways to cheat around equip costs, your turns are going to be very slow, allowing your opponents to interact with your battlefield and remove threats before you can even take advantage of them
In short, legendary Pokmon cards are valuable because theyre scarce, beautifully designed, feature some of the most powerful and iconic Pokmon in the series, and are thus coveted by collectors