The mechanical details give artists a chance to experiment with metallic colors
Odd-Eyes utilizes a ton of Pendulum Monsters, and can make use of both generic Dragon and Pendulum support cards in order to make for a consistent strategy
While it is true that a few of these cards have now been Masterpieces twice (Mana Vault, Ancient Tomb, Through the Breach), we need only look as far as Mana Crypt and Sol Ring for examples of cards that have had multiple rare and shiny versions that have tended to trend upward together once the Masterpiece started to rise
You even get mana in the form of Treasure tokens, and each creature becomes two pieces of fodder in a sacrifice-dedicated deck
Things get murkier when you take into account the price trends for Japanese copies of the same cards, which have taken a very different journey from their English-language counterparts
Is the goal to use a single, powerful attacker to take one-hit Knock Outs