The value of X is calculated only once, as Lydia Frye's last ability resolves
Roger, which was harder to pull than the regular manga rares in the set
The contents of each booster is: 14 Magic: The Gathering cards per booster 1 Ad/Token card or Art card in each booster 1 Land in each booster: 50% chance of a basic land
These cards will be part of the upcoming The Brothers' War expansion set to release on November 18, 2022
For example, if it blocks a 12/12 creature with trample, that creature's controller must assign at least 8 of that creature's combat damage to Diamond Weapon, and the remainder can be assigned to the defending player, planeswalker, or battle
But the spell/creature side of these are more efficient than the average from the Zendikar Rising modal double-faced cards and the mono-colored ones can enter untapped if you pay life, so I think many will find a home, and not just in Goblin Charbelcher decks