Against a table full of multicolor decks, Ultima becomes a living mana screw
What makes these cards special: Completely made of metal instead of cardboard Exclusively available through Ultra-Premium Collection boxes PSA 10 copies are extremely scarce , as these cards are very susceptible to damage and often come out of the box with minor imperfections Later releases followed with the Arceus Ultra-Premium Collection (2022) and the 151 Ultra-Premium Collection (2023) , which added new metal cards, often in full color instead of gold
Since hes a 6,000 Power Character, he can be used aggressively as well to pressure the opponent
If you're playing against a person that you know is playing Chaos Orb (which would be an incredibly rare sight given that the card is not only rare and expensive, but is also illegal in every format except for non-sanctioned games), then you could possibly take advantage of these quirks
Let's look at why
Check out this article from Wizards back in 2015, which discusses the mulligan options that were considered before the current scry mulligan rule went into effect