(6/6/2025) If a card in your graveyard has in its mana cost, X is 0 for the purpose of determining its mana value and you must choose 0 as the value of X when casting it without paying its mana cost.
They just do so on a very different axis than typical interactive spells like Counterspell and Swords to Plowshares
That means they are all reprints of existing cards reskinned with concept art and characters from different Final Fantasy games - so while there are no brand new or mechanically unique cards here like the ones that have been shown off recently or those in the Commander decks we previously revealed, they do have art that stretches back all the way to the very first game in the series
Think like Pokemon's Battle Academy
As with Set and Draft Boosters, each Collector Booster display contains a Gala Greeters Box Topper, with art and language of the Gala Greeters matching the language of the display
Plus, you get to play cards like Firesong and Sunspeaker, then just use green to ramp into big X burn spells