The Brothers' War

Brotherhood's End | Sorcery | | Choose one — • Brotherhood's End deals 3 damage to each creature and each planeswalker. • Destroy all artifacts with mana value 3 or less. | Bryan Sola

Excavation Explosion | Sorcery | | Excavation Explosion deals 3 damage to any target. Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Campbell White

Raze to the Ground | Sorcery | | This spell can't be countered. Destroy target artifact. If its mana value was 1 or less, draw a card. | Joshua Raphael