It could either be a one-time effect or a repeatable effect
In fact, there are games where Panopticon gets flipped, and it sticks because everyone wants a Howling Mine out for a few turns
PS Platinum Secret Rare QCSE Quarter Century Secret Rare The Fang of Critias X SPELL (This card is also always treated as "Legendary Dragon Critias".) Send 1 Trap from your hand or field to the GY, that is listed on a Fusion Monster that can only be Special Summoned with "The Fang of Critias" (if that card is Set, reveal it), then Special Summon that Fusion Monster from your Extra Deck
Final Thoughts Graded Pokmon cards are one of the most straightforward things to sell in the hobby the authentication is done, the condition is objective, and the pricing is transparent
Each Aura and Equipment you control attached to a permanent that isn't phasing out phases in attached to that permanent if it can still be attached to that permanent
At time of writing there are 291 different cards with serialized versions, although there are one or two duplicates in that list, like Chromatic Lantern getting serialized versions in both Ravnica Remastered and The Brothers War
