There was a limited supply, it was never going to be reprinted, it was tied into a real world event, and it featured Godzilla art
Magic is dead. The same thing happened with the energy counters from Kaladesh , the double-faced cards from Innistrad , phyrexian mana, planeswalkers, border changes, the introduction of Standard, and even the introduction of the 60-card deck limit
Once it does (which happens frequently in Commander), you look at the top eight cards of your library and can put a creature card from among them directly into play tapped and attacking
What do you think of the set
Like other foils, oil slick foils are prone to curling if they arent properly stored
Though, if your opponent had a way of reanimating the Timmerian Fiends, they could use it themselves (if they have triple Black mana) and turn the tides