If the greatest power among creatures you control changes while activating mana abilities, the cost to cast The Great Henge remains what you previously determined
Previously, in cases where a card's mana value differed from the resulting spell, such as with some modal double-faced cards or cards with an Adventure, you could cast a spell with a higher mana value than the exiled card
For instance, I control the prowess creature [c]Mistral Singer[/c], and Ive equipped it with [c]Embercleave[/c] so it has double strike
If Locthwain Lancer dies at the same time as other nontoken Knights you control, its ability will trigger once for itself (assuming it's not a token) and once for each of those other Knights
8: You get an emblem with "Whenever a creature dies, return it to the battlefield under your control at the beginning of the next end step." X: Return target nonlegendary creature card with mana value X from your graveyard to the battlefield
Players could still get and play unserialized versions of the card to play, which is to some extent the same here as each of the chocobo is the same color, but while the art used for the One Ring cards would be different, it was still just the same ring, just with a different picture
