Maybe the best measure of a Magic card design is how helpless a fresh player is to the ideas that come to mind while reading it, despite what seems like very little English language input
----Meld---- Ragnarok, Divine Deliverance Legendary Creature - Beast Avatar Vigilance, menace, trample, reach, haste When Ragnarok dies, destroy target permanent and return target nonlegendary permanent card from your graveyard to the battlefield
Mewtwo Stall - These decks aren't that great
In terms of other Japanese Card Games, you also have a range of games based on licensed properties
The type-changing ability that can make Purphoros not be a creature functions only on the battlefield
Cards that are harder to find, such as first-edition holographics, promotional exclusives, or cards from limited print runs, tend to hold their value better than more common ones