If the destroyed permanent's controller chooses to cast the exiled card without paying its mana cost, they can't choose to cast it for any alternative costs
Graveyard decks will try to puzzle out a way to get the one spell they want to cast for free into the yard to minimize the random element, but will quickly give up in favor of just reanimating Razaketh, the Foulblooded for the millionth time
Still, its got a place in the history of Magic and could theoretically see play again if the right spell comes along
Kiki-Jiki, Mirror Breaker There are a lot of ways for Kiki-Jiki, Mirror Breaker to create infinite combos
In this case, Single Strike Urshifu is "168/163." #3 Expensive TCG Battle Style Card: Houndoom (Secret) - $49 Some Pokmon TCG players were confused when, out of all available Pokmon, it was Houndoom who received a golden secret card
Follow the instructions in the insert and quick reference card to make the most of the cards and play the game