If Caldera Pyremaw leaves the battlefield in response to its ability, use its power the last time it existed on the battlefield to determine how much damage it deals as its ability resolves
That number (or X) is how many other creatures you place a +1/+1 counter on when the card with support resolves or enters the battlefield
But Final Fantasy introduced sagas that are also creatures, which could be targeted with effects like Tishana's Tidebinder, Fresh Start, or Unable to Scream (since these all affect creatures)
Furthermore, there are 11 new Borderless Storybook cards, among them the sole planeswalker of Eldraine, Ashiok
Ready: Ready all cards on the player's field by turning them upright
The special Pikachu card was posted for $25 and above on eBay hours after the Pokmon promotion was stopped