Constant Mists [Stronghold] Guildpact Roar of the World is

Roar of the World is in the command zone or on the battlefield

the books were intact—though forever sealed in time

Set: Flaming Eternity Card type: Normal Trap Rarity: Common Attack: 0 Defense: 0 Draw a number of cards from your Deck equal to the number of "Good Goblin Housekeeping" cards in your Graveyard + 1

Gain Life Points equal to the original ATK of the destroyed monster

who did in Unkful

Constant Mists [Stronghold] Guildpact Roar of the World isSet: Stronghold Type: Instant Rarity: Uncommon Cost: {1}{G} BuybackSacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Prevent all combat damage that would be dealt this turn.