Markers have been in the game since Alpha and have always been an evergreen mechanic
Modern Creativity decks employ a typical polymorph strategy: They play nothing but giant creatures in the mainboard (Atraxa, Grand Unifier, Archon of Cruelty), and use token generators like Dwarven Mine, Khalni Garden, and Treasure to generate fodder for Creativity
While you may never have owned this card, there always is a slight chance you might have acquired this card in your old deck
Damage will still be dealt to an indestructible creature, but it won't die to state-based actions
Some recent Sagas have gone on to bigger and better existences as enchantment creatures, but for most Sagas, the story starts at chapter one and advances one chapter per turn until the Saga is sacrificed
Japanese versions are only found in Japanese-language Collector Boosters, with English versions in all other languages of Collector Booster