Circle of Protection: White [Collectors' Edition] Horror Construct When Terror Ballista attacks

When Terror Ballista attacks

Kaervek the Merciless deals damage equal to that spell's mana value to any target

Set: Commander 2019 Type: Sorcery Rarity: Rare Cost: {3}{G} Tempting offer — Search your library for a land card and put it onto the battlefield

and collapsed in a fit of horrifying giggles

Set: Commander Masters Type: Tribal Sorcery — Eldrazi Rarity: Rare Cost: {7} Each player sacrifices all colored permanents he or she controls

Circle of Protection: White [Collectors' Edition] Horror Construct When Terror Ballista attacksSet: Collectors' Edition Type: Enchantment Rarity: Common Cost: {1}{W} {1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage.