Beskrivelse
You imbue a weapon you touch with volatile magic. If the weapon isn't already a magic weapon, it becomes one for the duration. Until the spell ends, the weapon emits bright light'24 in a 5-foot radius and dim light'24 for an additional 5 feet. In addition, weapon attacks made with it score a critical hit on a roll 19 or 20 on the d20, and the first time each turn a creature scores a critical hit using the weapon, an explosion of arcane energy bursts from the point of impact. Each creature other than the weapon's wielder within 10 feet of the target must make a Dexterity saving throw. A creature takes 2d8 damage on a failed save, or half as much on a successful one. The weapon's wielder chooses one of the d8s. The number rolled on that die determines the explosion's damage type as shown below. If the same number is rolled on two or more of the d8s, the explosion's radius increases to 20 feet.